Where are the 7 Commands of the Indian Army, 7 Commands of the Indian Air Force, and 3 Commands of the Indian Navy headquartered?

Indian Army (7 Commands): Northern (Udhampur), Western (Chandimandir), South-Western (Jaipur), Southern (Pune), Central (Lucknow), Eastern (Kolkata), and Army Training Command - ARTRAC (Shimla). Indian Air Force (7 Commands): Western (New Delhi), South-Western (Gandhinagar), Central (Prayagraj), Eastern (Shillong), Southern (Thiruvananthapuram), Training Command (Bengaluru), and Maintenance Command (Nagpur). Indian Navy (3 Commands): Western (Mumbai), Eastern (Visakhapatnam), and Southern (Kochi - Training Command).

BrahMos (India DRDO + Russia NPO Mashinostroyeniya, named after Brahmaputra & Moskva rivers): Supersonic Cruise Missile (Mach 2.8–3.0, air/land/sea/sub-launched); Astra: Beyond-Visual-Range Air-to-Air…

Gandhi returns from South Africa (9 Jan 1915) -> Champaran Satyagraha (1917 - 1st Civil Disobedience against Tinkathia Indigo system) -> Ahmedabad Mill Strike (1918 - 1st Hunger Strike) -> Kheda…

Art 352 (National Emergency): Proclaimed on grounds of 'War, External Aggression, or Armed Rebellion' (44th AA replaced 'Internal Disturbance' with 'Armed Rebellion' and required written recommendation of…

Which Non-Constitutional (Statutory / Executive) Bodies are frequently tested in UPSC NDA/CDS and how do they differ from Constitutional Bodies?

NITI Aayog (National Institution for Transforming India, established 1 Jan 2015 by executive resolution replacing Planning Commission; PM is Chairperson): Extra-constitutional executive think tank. Statutory Bodies (created by Act of Parliament): NHRC (Protection of Human Rights Act 1993), Lokpal and Lokayuktas (Act 2013), CVC (Central Vigilance Commission Act 2003, established on Santhanam Committee recommendation), CIC (RTI Act 2005), SEBI (1992), and NIA (2008).

Day 1 Screening: OIR (Officer Intelligence Rating) verbal/non-verbal test + PPDT (Picture Perception & Description Test).

USA: Yudh Abhyas (Army), Vajra Prahar (Special Forces), Cope India (Air), Tiger Triumph (Tri-service), Malabar (Quad Naval: India, US, Japan, Australia); France: Shakti (Army), Varuna (Navy), Garuda…

1) Right to Equality (Art 14–18), 2) Right to Freedom (Art 19–22, including Art 21A Right to Education added by 86th AA 2002), 3) Right against Exploitation (Art 23–24), 4) Right to Freedom of Religion…

What were the five missiles developed under Dr. A.P.J. Abdul Kalam's Integrated Guided Missile Development Programme (IGMDP, 1983–2008)?

Mnemonic PATNA: 1) Prithvi (short-range surface-to-surface ballistic missile), 2) Agni (intermediate/intercontinental surface-to-surface ballistic missile series: Agni-I to Agni-V ICBM > 5,000 km with MIRV 'Mission Divyastra'), 3) Trishul (short-range surface-to-air missile), 4) Nag (3rd-generation 'fire-and-forget' anti-tank guided missile; air-launched version is HELINA / Dhruvastra), and 5) Akash (medium-range surface-to-air missile).

1) Troposphere (0–8 km at poles, 0–18 km at equator): All weather phenomena, lapse rate 6.5°C per km, bounded by Tropopause; 2) Stratosphere (up to 50 km): Contains Ozone Layer (15–35 km, measured in…

1) Right to Equality (Art 14–18), 2) Right to Freedom (Art 19–22, including Art 21A Right to Education added by 86th AA 2002), 3) Right against Exploitation (Art 23–24), 4) Right to Freedom of Religion…

1) Shankari Prasad (1951) & Golaknath (1967): Debated amendability of FRs; 2) Kesavananda Bharati v.

What are the 5 Constitutional Writs issued by the Supreme Court (Article 32) and High Courts (Article 226) and how do their writ jurisdictions differ?

1) Habeas Corpus ('To have the body of' - against unlawful detention by public OR private authority), 2) Mandamus ('We command' - to a public official/body to perform a statutory duty; cannot be issued against President/Governor or private body), 3) Prohibition ('To forbid' - issued by a higher court to a lower court/tribunal to prevent exceeding jurisdiction), 4) Certiorari ('To be certified' - to quash an order already passed by a lower court/tribunal without jurisdiction or against natural justice), 5) Quo Warranto ('By what authority or warrant' - to inquire into the legality of a claim to a public office). SC issues writs ONLY for Fundamental Rights (Art 32 is itself a FR), whereas HC (Art 226) issues writs for both Fundamental Rights and 'for any other purpose' (wider territorial/subject scope, though discretionary).

Art 352 (National Emergency): Proclaimed on grounds of 'War, External Aggression, or Armed Rebellion' (44th AA replaced 'Internal Disturbance' with 'Armed Rebellion' and required written recommendation of…

Day 1 Screening: OIR (Officer Intelligence Rating) verbal/non-verbal test + PPDT (Picture Perception & Description Test).

1) Troposphere (0–8 km at poles, 0–18 km at equator): All weather phenomena, lapse rate 6.5°C per km, bounded by Tropopause; 2) Stratosphere (up to 50 km): Contains Ozone Layer (15–35 km, measured in…

What is the SSB (Services Selection Board) 5-Day Interview Procedure and the 15 Officer Like Qualities (OLQs) evaluated for NDA and CDS candidates?

Day 1 Screening: OIR (Officer Intelligence Rating) verbal/non-verbal test + PPDT (Picture Perception & Description Test). Days 2–5 (for screened-in candidates): Psychological Tests (TAT - Thematic Apperception Test, WAT - Word Association Test, SRT - Situation Reaction Test, SD - Self Description), GTO (Group Testing Officer) tasks (GD, GPE, PGT, HGT, Command Task, Snake Race, Individual Obstacles, Lecturette), Personal Interview, and Day 5 Board Conference. All three assessors independently evaluate 15 OLQs grouped under 4 factors: Planning & Organizing, Social Adjustment, Social Effectiveness, and Dynamic (Determination, Courage, Stamina).

Mnemonic PATNA: 1) Prithvi (short-range surface-to-surface ballistic missile), 2) Agni (intermediate/intercontinental surface-to-surface ballistic missile series: Agni-I to Agni-V ICBM > 5,000 km with…

1885 Bombay (1st President: W.C.

Public Accounts Committee (PAC - set up 1921): 22 members (15 Lok Sabha + 7 Rajya Sabha), examines CAG audit reports, Chairman is conventionally from the Opposition.

Match the Governor-Generals and Viceroys of India with their landmark reforms and events.

Warren Hastings: Regulating Act 1773 (1st Governor-General of Bengal), Asiatic Society (1784); Lord Cornwallis: Permanent Settlement (1793), Father of Civil Services; Lord Wellesley: Subsidiary Alliance (1798 - Nizam of Hyderabad first to sign); Lord William Bentinck: Charter Act 1833 (1st GG of India), Abolition of Sati (1829), Macaulay's Minute (1835); Lord Dalhousie: Doctrine of Lapse (Satara 1848 first), Railways & Telegraph (1853), Wood's Despatch (1854); Lord Canning: Revolt of 1857, Govt of India Act 1858 (1st Viceroy); Lord Ripon: Father of Local Self-Government (1882), Ilbert Bill, 1st synchronous Census (1881); Lord Curzon: Partition of Bengal (1905); Lord Mountbatten: Last Viceroy & 1st GG of Independent India (C. Rajagopalachari was the only Indian GG).

Key DPSP Articles: Art 39A (Equal justice & free legal aid - 42nd AA), Art 40 (Organization of Village Panchayats), Art 44 (Uniform Civil Code - implemented in Goa & Uttarakhand), Art 45 (Early childhood…

1) Shankari Prasad (1951) & Golaknath (1967): Debated amendability of FRs; 2) Kesavananda Bharati v.

BrahMos (India DRDO + Russia NPO Mashinostroyeniya, named after Brahmaputra & Moskva rivers): Supersonic Cruise Missile (Mach 2.8–3.0, air/land/sea/sub-launched); Astra: Beyond-Visual-Range Air-to-Air…

Compare BrahMos, Astra, Nirbhay, Pralay, Pinaka, and S-400 Triumf in India's defence arsenal.

BrahMos (India DRDO + Russia NPO Mashinostroyeniya, named after Brahmaputra & Moskva rivers): Supersonic Cruise Missile (Mach 2.8–3.0, air/land/sea/sub-launched); Astra: Beyond-Visual-Range Air-to-Air Missile (BVRAAM); Nirbhay: Long-range subsonic cruise missile; Pralay: Quasi-ballistic surface-to-surface tactical missile; Pinaka: Indigenous Multi-Barrel Rocket Launcher (MBRL); S-400 Triumf ('Sudarshan Chakra'): Long-range surface-to-air missile defence system acquired from Russia.

Local Winds: Chinook ('Snow Eater' - warm dry wind in Rockies, USA/Canada), Foehn (warm wind in Alps), Sirocco (warm dusty wind from Sahara to Mediterranean causing 'Blood Rain'), Harmattan ('Doctor Wind'…

1) Habeas Corpus ('To have the body of' - against unlawful detention by public OR private authority), 2) Mandamus ('We command' - to a public official/body to perform a statutory duty; cannot be issued…

1st AA (1951): Added 9th Schedule; 42nd AA (1976 - 'Mini-Constitution'): Added Socialist, Secular, Integrity to Preamble & Part IVA Fundamental Duties; 44th AA (1978): Removed Right to Property from FRs…

In NDA/CDS Physical Geography, what are the layers of Earth's Interior, Discontinuities, and types of Earthquake Waves (P, S, L)?

Discontinuities: Conrad (Upper vs Lower Crust), Mohorovicic / Moho (Crust vs Mantle), Repetti (Upper vs Lower Mantle), Gutenberg (Mantle vs Outer Core at 2,900 km), Lehmann (Liquid Outer Core vs Solid Inner Core - NiFe). Seismic Waves: P-waves (Primary, longitudinal, fastest, travel through solid, liquid & gas); S-waves (Secondary, transverse, travel ONLY through solids—their shadow zone beyond 103° proves Outer Core is liquid); L-waves / Love & Rayleigh (Surface waves, slowest but most destructive).

Gandhi returns from South Africa (9 Jan 1915) -> Champaran Satyagraha (1917 - 1st Civil Disobedience against Tinkathia Indigo system) -> Ahmedabad Mill Strike (1918 - 1st Hunger Strike) -> Kheda…

Money Bill (Art 110 - certified solely by the Speaker of Lok Sabha): Can be introduced ONLY in Lok Sabha with prior recommendation of the President; Rajya Sabha cannot reject or amend it (must return…

Day 1 Screening: OIR (Officer Intelligence Rating) verbal/non-verbal test + PPDT (Picture Perception & Description Test).

Compare the three types of Emergencies in Part XVIII of the Indian Constitution: National Emergency (Art 352), President's Rule (Art 356), and Financial Emergency (Art 360).

Art 352 (National Emergency): Proclaimed on grounds of 'War, External Aggression, or Armed Rebellion' (44th AA replaced 'Internal Disturbance' with 'Armed Rebellion' and required written recommendation of the Cabinet); must be approved by both Houses within 1 month by Special Majority and renewed every 6 months indefinitely (proclaimed 3 times: 1962, 1971, 1975). Art 356 (State Emergency / President's Rule): Approved within 2 months by Simple Majority; max duration 3 years (subject to judicial review per S.R. Bommai case). Art 360 (Financial Emergency): Approved within 2 months by Simple Majority, continues indefinitely until revoked (never proclaimed in India).

1st AA (1951): Added 9th Schedule; 42nd AA (1976 - 'Mini-Constitution'): Added Socialist, Secular, Integrity to Preamble & Part IVA Fundamental Duties; 44th AA (1978): Removed Right to Property from FRs…

Mnemonic PATNA: 1) Prithvi (short-range surface-to-surface ballistic missile), 2) Agni (intermediate/intercontinental surface-to-surface ballistic missile series: Agni-I to Agni-V ICBM > 5,000 km with…

Warren Hastings: Regulating Act 1773 (1st Governor-General of Bengal), Asiatic Society (1784); Lord Cornwallis: Permanent Settlement (1793), Father of Civil Services; Lord Wellesley: Subsidiary Alliance…

In Modern Indian History (NDA/CDS), match the major Socio-Religious Reform Movements of the 19th Century with their founders and years.

Brahmo Samaj (1828, Calcutta): Raja Ram Mohan Roy (abolition of Sati in 1829 with Lord William Bentinck); Arya Samaj (1875, Bombay): Swami Dayananda Saraswati ('Go back to the Vedas', Shuddhi Movement, book 'Satyarth Prakash'); Prarthana Samaj (1867): Atmaram Pandurang & M.G. Ranade; Satyashodhak Samaj (1873): Jyotirao Phule (book 'Gulamgiri'); Ramakrishna Mission (1897): Swami Vivekananda; Aligarh Movement (1875): Sir Syed Ahmad Khan; Theosophical Society (1875/1882 Adyar): Blavatsky, Olcott & Annie Besant; Self-Respect Movement (1925): Periyar E.V. Ramasamy.

1st: States (28) & UTs (8); 2nd: Emoluments/allowances of President, Governors, Judges, CAG; 3rd: Oaths & Affirmations; 4th: Allocation of seats in Rajya Sabha; 5th: Administration of Scheduled Areas &…

Committees in chronological order: 1) Balwant Rai Mehta Committee (1957 - recommended 3-tier system: Gram Panchayat, Panchayat Samiti, Zila Parishad; first inaugurated at Nagaur, Rajasthan on 2 Oct 1959),…

From lowest to highest commissioned rank: 1) Lieutenant = Sub-Lieutenant = Flying Officer; 2) Captain = Lieutenant = Flight Lieutenant; 3) Major = Lieutenant Commander = Squadron Leader; 4) Lieutenant…

What is the chronological order of major events in the Gandhian Era (1915–1947)?

Gandhi returns from South Africa (9 Jan 1915) -> Champaran Satyagraha (1917 - 1st Civil Disobedience against Tinkathia Indigo system) -> Ahmedabad Mill Strike (1918 - 1st Hunger Strike) -> Kheda Satyagraha (1918 - 1st Non-Cooperation) -> Rowlatt Act & Jallianwala Bagh Massacre (13 April 1919) -> Khilafat & Non-Cooperation Movement (1920–Feb 1922, suspended after Chauri Chaura incident) -> Simon Commission (1927/1928) -> Dandi March / Salt Satyagraha (12 March – 6 April 1930) & Civil Disobedience Movement -> Gandhi-Irwin Pact & 2nd Round Table Conference (1931) -> Poona Pact (Sept 1932 with Dr. B.R. Ambedkar) -> Cripps Mission & Quit India Movement (8 Aug 1942 - 'Do or Die') -> Cabinet Mission (1946) -> Mountbatten Plan & Indian Independence Act (1947).

1) Habeas Corpus ('To have the body of' - against unlawful detention by public OR private authority), 2) Mandamus ('We command' - to a public official/body to perform a statutory duty; cannot be issued…

NITI Aayog (National Institution for Transforming India, established 1 Jan 2015 by executive resolution replacing Planning Commission; PM is Chairperson): Extra-constitutional executive think tank.

Mnemonic PATNA: 1) Prithvi (short-range surface-to-surface ballistic missile), 2) Agni (intermediate/intercontinental surface-to-surface ballistic missile series: Agni-I to Agni-V ICBM > 5,000 km with…

Match India's major Bilateral and Multilateral Military Exercises with partner nations.

USA: Yudh Abhyas (Army), Vajra Prahar (Special Forces), Cope India (Air), Tiger Triumph (Tri-service), Malabar (Quad Naval: India, US, Japan, Australia); France: Shakti (Army), Varuna (Navy), Garuda (Air); UK: Ajeya Warrior (Army), Konkan (Navy), Indradhanush/Cobra Warrior (Air); Russia: Indra; Japan: Dharma Guardian, Veer Guardian, JIMEX; Sri Lanka: Mitra Shakti, SLINEX; Bangladesh: Sampriti, Bongosagar; Nepal: Surya Kiran; Indonesia: Garuda Shakti, Samudra Shakti; Singapore: SIMBEX, Agni Warrior; Kazakhstan: Kazind.

1885 Bombay (1st President: W.C.

Electoral College for President (Art 54): Elected members of BOTH Houses of Parliament + Elected members of State Legislative Assemblies (including Delhi & Puducherry).

De Moivre's Theorem: (cos theta + i sin theta)^n = cos(n*theta) + i sin(n*theta), and cube roots of unity 1, omega, omega^2 satisfy 1 + omega + omega^2 = 0 and omega^3 = 1.

Compare Key Directive Principles of State Policy (DPSP - Part IV, Articles 36–51) and Fundamental Duties (Part IVA, Article 51A).

Key DPSP Articles: Art 39A (Equal justice & free legal aid - 42nd AA), Art 40 (Organization of Village Panchayats), Art 44 (Uniform Civil Code - implemented in Goa & Uttarakhand), Art 45 (Early childhood care), Art 48A (Protection of environment/wildlife - 42nd AA), Art 50 (Separation of Judiciary from Executive), Art 51 (Promotion of international peace and security). Fundamental Duties (Art 51A): Added by the 42nd Amendment Act (1976) on the recommendation of the Swaran Singh Committee (originally 10 duties; 11th duty on child education 6–14 yrs added by 86th AA 2002).

Committees in chronological order: 1) Balwant Rai Mehta Committee (1957 - recommended 3-tier system: Gram Panchayat, Panchayat Samiti, Zila Parishad; first inaugurated at Nagaur, Rajasthan on 2 Oct 1959),…

Indian Army (7 Commands): Northern (Udhampur), Western (Chandimandir), South-Western (Jaipur), Southern (Pune), Central (Lucknow), Eastern (Kolkata), and Army Training Command - ARTRAC (Shimla).

Local Winds: Chinook ('Snow Eater' - warm dry wind in Rockies, USA/Canada), Foehn (warm wind in Alps), Sirocco (warm dusty wind from Sahara to Mediterranean causing 'Blood Rain'), Harmattan ('Doctor Wind'…

In NDA/CDS Ancient & Medieval Indian History, match the Indus Valley Civilization sites, Buddhist Councils, Ashokan Edicts, and Delhi Sultanate / Mughal administrative systems.

Indus Valley Sites: Harappa (Dayaram Sahni, 1921, Ravi river), Mohenjo-daro (R.D. Banerji, 1922, Indus - Great Bath), Lothal (Gujarat, Bhogava river - Dockyard), Kalibangan (Rajasthan - ploughed field & fire altars), Dholavira (Gujarat - 3-part city & giant water reservoirs), Rakhigarhi (Haryana - largest IVC site in India). 4 Buddhist Councils: 1st Rajagriha (Ajatashatru), 2nd Vaishali (Kalashoka), 3rd Pataliputra (Ashoka), 4th Kashmir (Kanishka - split into Hinayana & Mahayana). Ashoka's Major Rock Edict XIII describes the Kalinga War (261 BCE); deciphered by James Prinsep in 1837. Delhi Sultanate & Mughals: Iqta system (Iltutmish), Market control/Dagh & Chehra (Alauddin Khilji), Token currency (Muhammad bin Tughlaq), Zabti/Dahshala land revenue (Raja Todar Mal under Akbar) & Mansabdari system (Zat & Sawar under Akbar).

From lowest to highest commissioned rank: 1) Lieutenant = Sub-Lieutenant = Flying Officer; 2) Captain = Lieutenant = Flight Lieutenant; 3) Major = Lieutenant Commander = Squadron Leader; 4) Lieutenant…

Local Winds: Chinook ('Snow Eater' - warm dry wind in Rockies, USA/Canada), Foehn (warm wind in Alps), Sirocco (warm dusty wind from Sahara to Mediterranean causing 'Blood Rain'), Harmattan ('Doctor Wind'…

Electoral College for President (Art 54): Elected members of BOTH Houses of Parliament + Elected members of State Legislative Assemblies (including Delhi & Puducherry).

What are the three tiers of Panchayati Raj Institutions (73rd Amendment Act, 1992) and the major Panchayati Raj Committees?

Committees in chronological order: 1) Balwant Rai Mehta Committee (1957 - recommended 3-tier system: Gram Panchayat, Panchayat Samiti, Zila Parishad; first inaugurated at Nagaur, Rajasthan on 2 Oct 1959), 2) Ashok Mehta Committee (1977 - 2-tier system), 3) G.V.K. Rao Committee (1985), 4) L.M. Singhvi Committee (1986 - recommended constitutional recognition). 73rd Amendment Act 1992 (Part IX, Art 243 to 243-O, 11th Schedule): Mandatory Gram Sabha, 5-year tenure, minimum age 21 years to contest, minimum 1/3rd reservation for women, State Election Commission (Art 243K), and State Finance Commission (Art 243I).

Indus Valley Sites: Harappa (Dayaram Sahni, 1921, Ravi river), Mohenjo-daro (R.D.

BrahMos (India DRDO + Russia NPO Mashinostroyeniya, named after Brahmaputra & Moskva rivers): Supersonic Cruise Missile (Mach 2.8–3.0, air/land/sea/sub-launched); Astra: Beyond-Visual-Range Air-to-Air…

Govt of India Act 1935: Federal scheme, Governor's office, Emergency provisions, Public Service Commissions; UK: Parliamentary system, Rule of Law, Bicameralism, Single Citizenship, Cabinet system,…

What are India's Wartime and Peacetime Gallantry Awards in order of precedence?

Wartime Gallantry Awards (instituted 26 Jan 1950): 1) Param Vir Chakra (PVC - highest; first recipient Major Somnath Sharma, 1947), 2) Maha Vir Chakra (MVC), 3) Vir Chakra (VrC). Peacetime Gallantry Awards (instituted 1952 as Ashoka Chakra Class I, II, III; renamed 1967): 1) Ashoka Chakra, 2) Kirti Chakra, 3) Shaurya Chakra. Overall order of precedence: PVC > Ashoka Chakra > MVC > Kirti Chakra > Vir Chakra > Shaurya Chakra.

Discontinuities: Conrad (Upper vs Lower Crust), Mohorovicic / Moho (Crust vs Mantle), Repetti (Upper vs Lower Mantle), Gutenberg (Mantle vs Outer Core at 2,900 km), Lehmann (Liquid Outer Core vs Solid…

1st: States (28) & UTs (8); 2nd: Emoluments/allowances of President, Governors, Judges, CAG; 3rd: Oaths & Affirmations; 4th: Allocation of seats in Rajya Sabha; 5th: Administration of Scheduled Areas &…

NITI Aayog (National Institution for Transforming India, established 1 Jan 2015 by executive resolution replacing Planning Commission; PM is Chairperson): Extra-constitutional executive think tank.

How is the President of India elected (Article 54), impeached (Article 61), and what are the President's Pardoning (Art 72), Ordinance (Art 123), and Veto Powers (Art 111)?

Electoral College for President (Art 54): Elected members of BOTH Houses of Parliament + Elected members of State Legislative Assemblies (including Delhi & Puducherry). Nominated members and members of State Legislative Councils (MLCs) do NOT vote in the election, whereas in Impeachment (Art 61 - 'violation of the Constitution', requiring 2/3rd majority of total membership of both Houses), ALL members (elected + nominated) of Parliament participate and State MLAs do NOT participate. Art 72: Pardon, Commutation, Remission, Respite, Reprieve (including death sentences and court-martial). Art 123: Ordinance power when Parliament is not in session (max life 6 months + 6 weeks; Governor's ordinance is Art 213). Art 111: Absolute, Suspensive, and Pocket Veto (no veto on Constitutional Amendment Bills per 24th AA).

Election Commission of India: Art 324 (CEC Act 2023 selection panel: PM, LoP, Cabinet Minister); UPSC & SPSC: Art 315–323; Finance Commission (Art 280; 16th FC Chair for 2026–31 = Dr.

Tri-Service Commands: 1) Andaman and Nicobar Command (ANC - Port Blair / Sri Vijaya Puram, first integrated theater command, 2001), and 2) Strategic Forces Command (SFC - New Delhi, manages nuclear arsenal).

Brahmo Samaj (1828, Calcutta): Raja Ram Mohan Roy (abolition of Sati in 1829 with Lord William Bentinck); Arya Samaj (1875, Bombay): Swami Dayananda Saraswati ('Go back to the Vedas', Shuddhi Movement,…

Compare Money Bills (Article 110), Financial Bills (Article 117), Ordinary Bills, and Constitutional Amendment Bills (Article 368) regarding Joint Sitting (Article 108).

Money Bill (Art 110 - certified solely by the Speaker of Lok Sabha): Can be introduced ONLY in Lok Sabha with prior recommendation of the President; Rajya Sabha cannot reject or amend it (must return within 14 days); NO Joint Sitting (Art 108). Ordinary Bill & Financial Bill (I)/(II): Can have a Joint Sitting summoned by the President and presided over by the Lok Sabha Speaker (or Deputy Speaker, then Deputy Chairman of Rajya Sabha—never the Chairman/VP). Constitutional Amendment Bill (Art 368): Can be introduced in EITHER House without prior Presidential recommendation, must be passed by each House separately by Special Majority, NO Joint Sitting, and President MUST give assent.

NITI Aayog (National Institution for Transforming India, established 1 Jan 2015 by executive resolution replacing Planning Commission; PM is Chairperson): Extra-constitutional executive think tank.

From lowest to highest commissioned rank: 1) Lieutenant = Sub-Lieutenant = Flying Officer; 2) Captain = Lieutenant = Flight Lieutenant; 3) Major = Lieutenant Commander = Squadron Leader; 4) Lieutenant…

1885 Bombay (1st President: W.C.

Match the most important Constitutional Amendment Acts (1st, 42nd, 44th, 52nd, 61st, 73rd/74th, 86th, 101st, 102nd, 103rd, 104th, 105th, and 106th).

1st AA (1951): Added 9th Schedule; 42nd AA (1976 - 'Mini-Constitution'): Added Socialist, Secular, Integrity to Preamble & Part IVA Fundamental Duties; 44th AA (1978): Removed Right to Property from FRs to Art 300A, safeguarded Art 20 & 21; 52nd AA (1985): 10th Schedule Anti-Defection; 61st AA (1988): Lowered voting age from 21 to 18 years (Art 326); 86th AA (2002): Art 21A Right to Education; 101st AA (2016): GST; 102nd AA (2018): Constitutional status to NCBC (Art 338B); 103rd AA (2019): 10% EWS Reservation (Art 15(6) & 16(6)); 104th AA (2020): Extended SC/ST reservation in LS/Assemblies by 10 yrs & ended Anglo-Indian nomination; 105th AA (2021): Restored states' power to identify SEBCs/OBCs; 106th AA (2023 - Nari Shakti Vandan Adhiniyam): 33% reservation for women in Lok Sabha and State Legislative Assemblies.

Tri-Service Commands: 1) Andaman and Nicobar Command (ANC - Port Blair / Sri Vijaya Puram, first integrated theater command, 2001), and 2) Strategic Forces Command (SFC - New Delhi, manages nuclear arsenal).

1) Troposphere (0–8 km at poles, 0–18 km at equator): All weather phenomena, lapse rate 6.5°C per km, bounded by Tropopause; 2) Stratosphere (up to 50 km): Contains Ozone Layer (15–35 km, measured in…

Key DPSP Articles: Art 39A (Equal justice & free legal aid - 42nd AA), Art 40 (Organization of Village Panchayats), Art 44 (Uniform Civil Code - implemented in Goa & Uttarakhand), Art 45 (Early childhood…

Summarize the 6 Fundamental Rights in Part III (Articles 12–35) of the Indian Constitution and specify which articles are available ONLY to Indian citizens and which cannot be suspended during National Emergency.

1) Right to Equality (Art 14–18), 2) Right to Freedom (Art 19–22, including Art 21A Right to Education added by 86th AA 2002), 3) Right against Exploitation (Art 23–24), 4) Right to Freedom of Religion (Art 25–28), 5) Cultural & Educational Rights (Art 29–30), 6) Right to Constitutional Remedies (Art 32 - called the 'Heart and Soul of the Constitution' by Dr. B.R. Ambedkar). Right to Property (Art 31) was moved to Art 300A (legal right) by the 44th AA 1978. Articles available ONLY to Indian Citizens: Articles 15, 16, 19, 29, and 30. Articles 20 and 21 can NEVER be suspended even during a National Emergency (Art 359).

Public Accounts Committee (PAC - set up 1921): 22 members (15 Lok Sabha + 7 Rajya Sabha), examines CAG audit reports, Chairman is conventionally from the Opposition.

De Moivre's Theorem: (cos theta + i sin theta)^n = cos(n*theta) + i sin(n*theta), and cube roots of unity 1, omega, omega^2 satisfy 1 + omega + omega^2 = 0 and omega^3 = 1.

Discontinuities: Conrad (Upper vs Lower Crust), Mohorovicic / Moho (Crust vs Mantle), Repetti (Upper vs Lower Mantle), Gutenberg (Mantle vs Outer Core at 2,900 km), Lehmann (Liquid Outer Core vs Solid…

What are the five layers of Earth's Atmosphere and where do weather phenomena, the Ozone Layer, and radio wave reflection occur?

1) Troposphere (0–8 km at poles, 0–18 km at equator): All weather phenomena, lapse rate 6.5°C per km, bounded by Tropopause; 2) Stratosphere (up to 50 km): Contains Ozone Layer (15–35 km, measured in Dobson Units) and ideal for jet aircraft; 3) Mesosphere (50–80 km): Coldest layer (-90°C), meteors burn up here; 4) Thermosphere / Ionosphere (80–400 km): Reflects radio waves back to Earth and produces Auroras; 5) Exosphere (> 400 km): Merges into outer space.

Warren Hastings: Regulating Act 1773 (1st Governor-General of Bengal), Asiatic Society (1784); Lord Cornwallis: Permanent Settlement (1793), Father of Civil Services; Lord Wellesley: Subsidiary Alliance…

Public Accounts Committee (PAC - set up 1921): 22 members (15 Lok Sabha + 7 Rajya Sabha), examines CAG audit reports, Chairman is conventionally from the Opposition.

Indian Army (7 Commands): Northern (Udhampur), Western (Chandimandir), South-Western (Jaipur), Southern (Pune), Central (Lucknow), Eastern (Kolkata), and Army Training Command - ARTRAC (Shimla).

Compare India's key Constitutional Bodies and their Articles: Election Commission, UPSC, Finance Commission, CAG, Attorney General, and NCSC/NCST/NCBC.

Election Commission of India: Art 324 (CEC Act 2023 selection panel: PM, LoP, Cabinet Minister); UPSC & SPSC: Art 315–323; Finance Commission (Art 280; 16th FC Chair for 2026–31 = Dr. Arvind Panagariya; 15th FC = N.K. Singh, 41% vertical devolution & horizontal weights: Income Distance 45%, Population 2011 15%, Area 15%, Demographic Performance 12.5%, Forest/Ecology 10%, Tax Effort 2.5%); GST Council (Art 279A, 101st AA); CAG (Art 148, 6 yrs/65 yrs); Attorney General (Art 76 & Art 88); Advocate General (Art 165); NCSC (Art 338); NCST (Art 338A); NCBC (Art 338B, 102nd AA).

De Moivre's Theorem: (cos theta + i sin theta)^n = cos(n*theta) + i sin(n*theta), and cube roots of unity 1, omega, omega^2 satisfy 1 + omega + omega^2 = 0 and omega^3 = 1.

Aircraft Carriers: INS Vikramaditya (modified Kiev-class from Russia) and INS Vikrant (IAC-1, India's first indigenous aircraft carrier built by Cochin Shipyard, commissioned Sept 2022).

1st: States (28) & UTs (8); 2nd: Emoluments/allowances of President, Governors, Judges, CAG; 3rd: Oaths & Affirmations; 4th: Allocation of seats in Rajya Sabha; 5th: Administration of Scheduled Areas &…

What are the 12 Schedules of the Indian Constitution?

1st: States (28) & UTs (8); 2nd: Emoluments/allowances of President, Governors, Judges, CAG; 3rd: Oaths & Affirmations; 4th: Allocation of seats in Rajya Sabha; 5th: Administration of Scheduled Areas & Scheduled Tribes; 6th: Administration of Tribal Areas in 4 states—Assam, Meghalaya, Tripura, and Mizoram (Mnemonic: AMTM); 7th: Division of Powers—Union List, State List, Concurrent List; 8th: 22 Official Languages (originally 14; Sindhi by 21st AA, Konkani/Manipuri/Nepali by 71st AA, Bodo/Dogri/Maithili/Santhali by 92nd AA); 9th: Land reforms/Acts immune earlier (1st AA 1951; subject to Judicial Review post-24 April 1973 per I.R. Coelho case); 10th: Anti-Defection Law (52nd AA 1985); 11th: Panchayats (29 matters, 73rd AA 1992); 12th: Municipalities (18 matters, 74th AA 1992).

Money Bill (Art 110 - certified solely by the Speaker of Lok Sabha): Can be introduced ONLY in Lok Sabha with prior recommendation of the President; Rajya Sabha cannot reject or amend it (must return…

Indus Valley Sites: Harappa (Dayaram Sahni, 1921, Ravi river), Mohenjo-daro (R.D.

USA: Yudh Abhyas (Army), Vajra Prahar (Special Forces), Cope India (Air), Tiger Triumph (Tri-service), Malabar (Quad Naval: India, US, Japan, Australia); France: Shakti (Army), Varuna (Navy), Garuda…

What are the Parliamentary Committees (Public Accounts Committee, Estimates Committee, Committee on Public Undertakings) and key Parliamentary Motions?

Public Accounts Committee (PAC - set up 1921): 22 members (15 Lok Sabha + 7 Rajya Sabha), examines CAG audit reports, Chairman is conventionally from the Opposition. Estimates Committee (largest): 30 members, ALL from Lok Sabha (0 from Rajya Sabha). Committee on Public Undertakings (COPU): 22 members (15 LS + 7 RS). No-Confidence Motion (Rule 198): Can be moved ONLY in Lok Sabha (requires support of 50 members) against the entire Council of Ministers (Art 75(3): Council of Ministers is collectively responsible to the Lok Sabha, and capped at 15% of LS strength by 91st AA 2003).

1) Shankari Prasad (1951) & Golaknath (1967): Debated amendability of FRs; 2) Kesavananda Bharati v.

Wartime Gallantry Awards (instituted 26 Jan 1950): 1) Param Vir Chakra (PVC - highest; first recipient Major Somnath Sharma, 1947), 2) Maha Vir Chakra (MVC), 3) Vir Chakra (VrC).

Gandhi returns from South Africa (9 Jan 1915) -> Champaran Satyagraha (1917 - 1st Civil Disobedience against Tinkathia Indigo system) -> Ahmedabad Mill Strike (1918 - 1st Hunger Strike) -> Kheda…

In NDA Mathematics & Physics, what are De Moivre's Theorem for Complex Numbers, the Eccentricity of Conic Sections, and Kepler's Three Laws of Planetary Motion?

De Moivre's Theorem: (cos theta + i sin theta)^n = cos(n*theta) + i sin(n*theta), and cube roots of unity 1, omega, omega^2 satisfy 1 + omega + omega^2 = 0 and omega^3 = 1. Eccentricity (e) of Conics: Circle (e = 0), Ellipse (0 1, e = sqrt(1 + b^2/a^2)), Rectangular Hyperbola (e = sqrt(2)). Kepler's Laws: 1st Law (Law of Orbits - planets move in ellipses with Sun at one focus), 2nd Law (Law of Areas - dA/dt = L/(2m) = constant, conservation of angular momentum), 3rd Law (Law of Periods - T^2 propto a^3).

Wartime Gallantry Awards (instituted 26 Jan 1950): 1) Param Vir Chakra (PVC - highest; first recipient Major Somnath Sharma, 1947), 2) Maha Vir Chakra (MVC), 3) Vir Chakra (VrC).

Brahmo Samaj (1828, Calcutta): Raja Ram Mohan Roy (abolition of Sati in 1829 with Lord William Bentinck); Arya Samaj (1875, Bombay): Swami Dayananda Saraswati ('Go back to the Vedas', Shuddhi Movement,…

Money Bill (Art 110 - certified solely by the Speaker of Lok Sabha): Can be introduced ONLY in Lok Sabha with prior recommendation of the President; Rajya Sabha cannot reject or amend it (must return…

Where are India's Tri-Service Commands and Premier Defence Training Academies located?

Tri-Service Commands: 1) Andaman and Nicobar Command (ANC - Port Blair / Sri Vijaya Puram, first integrated theater command, 2001), and 2) Strategic Forces Command (SFC - New Delhi, manages nuclear arsenal). Academies: National Defence Academy (NDA) = Khadakwasla, Pune; Indian Military Academy (IMA) = Dehradun; Officers Training Academy (OTA) = Chennai & Gaya; Indian Naval Academy (INA) = Ezhimala, Kerala; Air Force Academy (AFA) = Dundigal, Hyderabad; National Defence College = New Delhi.

Aircraft Carriers: INS Vikramaditya (modified Kiev-class from Russia) and INS Vikrant (IAC-1, India's first indigenous aircraft carrier built by Cochin Shipyard, commissioned Sept 2022).

Warren Hastings: Regulating Act 1773 (1st Governor-General of Bengal), Asiatic Society (1784); Lord Cornwallis: Permanent Settlement (1793), Father of Civil Services; Lord Wellesley: Subsidiary Alliance…

Committees in chronological order: 1) Balwant Rai Mehta Committee (1957 - recommended 3-tier system: Gram Panchayat, Panchayat Samiti, Zila Parishad; first inaugurated at Nagaur, Rajasthan on 2 Oct 1959),…

What is the exact equivalence of Commissioned Officer Ranks across the Indian Army, Indian Navy, and Indian Air Force?

From lowest to highest commissioned rank: 1) Lieutenant = Sub-Lieutenant = Flying Officer; 2) Captain = Lieutenant = Flight Lieutenant; 3) Major = Lieutenant Commander = Squadron Leader; 4) Lieutenant Colonel = Commander = Wing Commander; 5) Colonel = Captain = Group Captain; 6) Brigadier = Commodore = Air Commodore; 7) Major General = Rear Admiral = Air Vice Marshal; 8) Lieutenant General = Vice Admiral = Air Marshal; 9) General = Admiral = Air Chief Marshal; 5-Star Ceremonial Rank: Field Marshal (Sam Manekshaw, K.M. Cariappa) = Admiral of the Fleet = Marshal of the IAF (Arjan Singh).

USA: Yudh Abhyas (Army), Vajra Prahar (Special Forces), Cope India (Air), Tiger Triumph (Tri-service), Malabar (Quad Naval: India, US, Japan, Australia); France: Shakti (Army), Varuna (Navy), Garuda…

Govt of India Act 1935: Federal scheme, Governor's office, Emergency provisions, Public Service Commissions; UK: Parliamentary system, Rule of Law, Bicameralism, Single Citizenship, Cabinet system,…

Election Commission of India: Art 324 (CEC Act 2023 selection panel: PM, LoP, Cabinet Minister); UPSC & SPSC: Art 315–323; Finance Commission (Art 280; 16th FC Chair for 2026–31 = Dr.

What are the Indian Navy's Aircraft Carriers, Nuclear Submarines (Arihant class), and Project-75 Scorpene-class Submarines?

Aircraft Carriers: INS Vikramaditya (modified Kiev-class from Russia) and INS Vikrant (IAC-1, India's first indigenous aircraft carrier built by Cochin Shipyard, commissioned Sept 2022). Nuclear Powered Ballistic Missile Submarines (SSBN - Arihant class): INS Arihant, INS Arighaat. Project-75 (6 Kalvari/Scorpene-class diesel-electric attack submarines built with France's Naval Group at Mazagon Dock): INS Kalvari, INS Khanderi, INS Karanj, INS Vela, INS Vagir, and INS Vagsheer.

Brahmo Samaj (1828, Calcutta): Raja Ram Mohan Roy (abolition of Sati in 1829 with Lord William Bentinck); Arya Samaj (1875, Bombay): Swami Dayananda Saraswati ('Go back to the Vedas', Shuddhi Movement,…

Key DPSP Articles: Art 39A (Equal justice & free legal aid - 42nd AA), Art 40 (Organization of Village Panchayats), Art 44 (Uniform Civil Code - implemented in Goa & Uttarakhand), Art 45 (Early childhood…

Indus Valley Sites: Harappa (Dayaram Sahni, 1921, Ravi river), Mohenjo-daro (R.D.

What are the landmark Supreme Court Judgments on the Basic Structure Doctrine and Fundamental Rights?

1) Shankari Prasad (1951) & Golaknath (1967): Debated amendability of FRs; 2) Kesavananda Bharati v. State of Kerala (24 April 1973, 13-judge bench, 7:6 majority): Propounded the 'Basic Structure Doctrine'—Parliament can amend any part of the Constitution under Art 368 (including FRs) provided it does not alter the Basic Structure; 3) Maneka Gandhi v. Union of India (1978): Expanded Art 21 to include 'Due Process of Law' (fair, just, and reasonable procedure); 4) Minerva Mills (1980): Harmony and balance between FRs (Part III) and DPSPs (Part IV) is part of the Basic Structure; 5) S.R. Bommai (1994): Secularism & Federalism, judicial review of Art 356; 6) K.S. Puttaswamy (2017): Right to Privacy is an intrinsic part of Art 21.

Indian Army (7 Commands): Northern (Udhampur), Western (Chandimandir), South-Western (Jaipur), Southern (Pune), Central (Lucknow), Eastern (Kolkata), and Army Training Command - ARTRAC (Shimla).

Discontinuities: Conrad (Upper vs Lower Crust), Mohorovicic / Moho (Crust vs Mantle), Repetti (Upper vs Lower Mantle), Gutenberg (Mantle vs Outer Core at 2,900 km), Lehmann (Liquid Outer Core vs Solid…

1) Habeas Corpus ('To have the body of' - against unlawful detention by public OR private authority), 2) Mandamus ('We command' - to a public official/body to perform a statutory duty; cannot be issued…

In Indian Polity (UPSC NDA/CDS), which features of the Indian Constitution were borrowed from the UK, USA, Ireland, Canada, Australia, USSR, Germany, South Africa, and France?

Govt of India Act 1935: Federal scheme, Governor's office, Emergency provisions, Public Service Commissions; UK: Parliamentary system, Rule of Law, Bicameralism, Single Citizenship, Cabinet system, Prerogative Writs; USA: Fundamental Rights, Judicial Review, Independence of Judiciary, Impeachment of President, Removal of SC/HC Judges, Vice-President's post, Preamble; Ireland: DPSP, Nomination of members to Rajya Sabha, Method of election of President; Canada: Federation with strong Centre, Residuary powers with Centre, Advisory jurisdiction of SC; Australia: Concurrent List, Joint Sitting (Art 108); USSR: Fundamental Duties, Justice ideals in Preamble; Weimar Germany: Suspension of Fundamental Rights during Emergency; South Africa: Constitutional Amendment (Art 368) & election of RS members; France: Republic & Liberty, Equality, Fraternity.

Electoral College for President (Art 54): Elected members of BOTH Houses of Parliament + Elected members of State Legislative Assemblies (including Delhi & Puducherry).

1st AA (1951): Added 9th Schedule; 42nd AA (1976 - 'Mini-Constitution'): Added Socialist, Secular, Integrity to Preamble & Part IVA Fundamental Duties; 44th AA (1978): Removed Right to Property from FRs…

Aircraft Carriers: INS Vikramaditya (modified Kiev-class from Russia) and INS Vikrant (IAC-1, India's first indigenous aircraft carrier built by Cochin Shipyard, commissioned Sept 2022).

In Climatology & Oceanography, match the major Local Winds (Chinook, Foehn, Loo, Mistral, Sirocco, Harmattan) and Warm vs Cold Ocean Currents.

Local Winds: Chinook ('Snow Eater' - warm dry wind in Rockies, USA/Canada), Foehn (warm wind in Alps), Sirocco (warm dusty wind from Sahara to Mediterranean causing 'Blood Rain'), Harmattan ('Doctor Wind' in West Africa), Loo (hot dry wind in North Indian plains), Mistral (cold wind in France/Alps), Bora (cold wind in Adriatic). Cold Ocean Currents: Humboldt/Peru, California, Canary, Benguela, Labrador, Oyashio (Kurile), Falkland, West Australian. Warm Currents: Gulf Stream, North Atlantic Drift, Kuroshio, Agulhas, Brazil, East Australian.

Govt of India Act 1935: Federal scheme, Governor's office, Emergency provisions, Public Service Commissions; UK: Parliamentary system, Rule of Law, Bicameralism, Single Citizenship, Cabinet system,…

Art 352 (National Emergency): Proclaimed on grounds of 'War, External Aggression, or Armed Rebellion' (44th AA replaced 'Internal Disturbance' with 'Armed Rebellion' and required written recommendation of…

Tri-Service Commands: 1) Andaman and Nicobar Command (ANC - Port Blair / Sri Vijaya Puram, first integrated theater command, 2001), and 2) Strategic Forces Command (SFC - New Delhi, manages nuclear arsenal).

In the Indian National Movement, what are the landmark sessions of the Indian National Congress (INC, founded 1885 by A.O. Hume)?

1885 Bombay (1st President: W.C. Bonnerjee, 72 delegates); 1886 Calcutta (Dadabhai Naoroji); 1887 Madras (Badruddin Tyabji - 1st Muslim President); 1888 Allahabad (George Yule - 1st English President); 1907 Surat (Surat Split between Moderates & Extremists under Rash Behari Ghosh); 1916 Lucknow (Ambica Charan Mazumdar - Lucknow Pact with Muslim League & reunion of Moderates-Extremists); 1917 Calcutta (Annie Besant - 1st Woman President); 1924 Belgaum (Mahatma Gandhi - only session presided over by Gandhi); 1925 Kanpur (Sarojini Naidu - 1st Indian Woman President); 1929 Lahore (Jawaharlal Nehru - Purna Swaraj); 1931 Karachi (Sardar Patel - Fundamental Rights); 1938 Haripura & 1939 Tripuri (Subhas Chandra Bose).

1) Right to Equality (Art 14–18), 2) Right to Freedom (Art 19–22, including Art 21A Right to Education added by 86th AA 2002), 3) Right against Exploitation (Art 23–24), 4) Right to Freedom of Religion…

Election Commission of India: Art 324 (CEC Act 2023 selection panel: PM, LoP, Cabinet Minister); UPSC & SPSC: Art 315–323; Finance Commission (Art 280; 16th FC Chair for 2026–31 = Dr.

Wartime Gallantry Awards (instituted 26 Jan 1950): 1) Param Vir Chakra (PVC - highest; first recipient Major Somnath Sharma, 1947), 2) Maha Vir Chakra (MVC), 3) Vir Chakra (VrC).

UPSC NDA & CDS (National Defence Academy & Combined Defence Services): Indian Military Commands, Defence Missiles/DRDO, Geography, Modern History & Polity

High-yield UPSC NDA and CDS General Ability Test (GAT) flashcards covering Indian Armed Forces Commands, Ranks, DRDO Missiles, Bilateral Exercises, Physical Geography, Indian Polity, and the Freedom Struggle.

Level: intermediate
Languages: en → en
Cards: 32
Markdown: UPSC NDA & CDS (National Defence Academy & Combined Defence Services): Indian Military Commands, Defence Missiles/DRDO, Geography, Modern History & Polity (.md)

Flashcards (32)