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UPSC Civil Services GK Questions 2026

Static general knowledge is six of the seven lines of the General Studies Paper-I syllabus in the UPSC CSE notice: History of India and the Indian National Movement; Indian and World Geography; Indian Polity and Governance; Economic and Social Development; Environmental Ecology, Bio-diversity and Climate Change; and General Science. The Commission tests understanding rather than recall, through statements to be judged correct or incorrect, pairs to be matched and assertion-reason items, and it likes the edges of a topic: a lesser-known provision of the Constitution, a river's tributary, a species' conservation status, the mandate of a statutory body. This page holds GK24's topic-wise GK notes for UPSC, written as short facts and tables, in English and Hindi, with each note linked to the current affairs and previous-year questions on the same topic. Start with Polity and Modern History, which carry the most questions, then Geography, the Economy, Environment, Ancient and Medieval culture and Science. Read a note, solve its PYQs, take its quiz, and come back to it in your monthly revision. A candidate who knows these notes and reads the daily current affairs has covered the syllabus the notice prescribes for Paper-I.

UPSC Civil Services GK Questions with Answers

Q6661.GeographyEasy

Which Indian State has the longest coastline?

  1. A.Gujarat
  2. B.Andhra Pradesh
  3. C.Tamil Nadu
  4. D.Maharashtra
Show answer
Correct answer: A. Gujarat

Its coast runs along the Gulf of Kachchh and the Gulf of Khambhat and around the Kathiawar peninsula, which gives it a far longer shoreline than any other State, and it is followed by Andhra Pradesh and Tamil Nadu.

Q6663.General ScienceHard

The Chandrasekhar limit is the maximum mass of which stellar remnant?

  1. A.A white dwarf
  2. B.A neutron star
  3. C.A black hole
  4. D.A red giant
Show answer
Correct answer: A. A white dwarf

Subrahmanyan Chandrasekhar showed that a white dwarf, which is supported against gravity by the pressure of degenerate electrons, cannot have a mass greater than about 1.4 times the mass of the Sun; beyond that limit the star collapses further, and the work brought him the Nobel Prize in Physics in…

Q6664.General ScienceHard

Which was the first Indian satellite, launched in 1975?

  1. A.Rohini
  2. B.Aryabhata
  3. C.Bhaskara
  4. D.INSAT-1A
Show answer
Correct answer: B. Aryabhata

India's first satellite was named after the ancient astronomer and mathematician Aryabhata, was built by the Indian Space Research Organisation and was launched in April 1975 from the Soviet Union, since India had no launch vehicle of its own at the time; it carried experiments in X-ray astronomy and solar…

Q6665.General ScienceMedium

The solar system is a part of which galaxy?

  1. A.Andromeda
  2. B.The Milky Way
  3. C.The Large Magellanic Cloud
  4. D.Triangulum
Show answer
Correct answer: B. The Milky Way

It is a spiral galaxy of a few hundred billion stars, and the solar system lies in one of its spiral arms, far from the centre, which is why we see the galaxy edge on as a milky band across the night sky.

Q6669.General ScienceEasy

A light year is a unit of

  1. A.Time
  2. B.Distance
  3. C.Brightness
  4. D.Mass
Show answer
Correct answer: B. Distance

A light year is the distance travelled by light in vacuum in one year, which is about 9.46 times ten to the power twelve kilometres, or roughly nine and a half trillion kilometres.

Q6670.General ScienceAsked in: SSC CPO · 12 Dec 2019, Shift 2Easy

Once a satellite has been launched into orbit, the only force governing its motion is the force of ______.

  1. A.gravity
  2. B.elasticity
  3. C.friction
  4. D.fuel driven
Show answer
Correct answer: A. gravity

A satellite is given the required height and speed by its launch vehicle, and after that no engine is needed: the gravitational pull of the earth alone acts on it and provides the centripetal force that keeps it in a curved path, so the satellite keeps falling towards the earth…

Q6671.General ScienceAsked in: Uttar Pradesh · 29 Oct, 2023, Shift 1Easy

What is the reason behind the twinkling of stars?

  1. A.Scattering of light by dust particles
  2. B.Internal reflection of light by clouds
  3. C.Atmospheric refraction of star light
  4. D.Dispersion of light by water droplets
Show answer
Correct answer: C. Atmospheric refraction of star light

A star is so far away that it is a point source of light.

Q6672.General ScienceAsked in: Bihar · BPSC Assistant 2014 Official PaperEasy

The source of the Sun's energy is

  1. A.Fusion of heavy nuclei
  2. B.Fusion of lighter nuclei
  3. C.Fission of light nuclei
  4. D.Fission of heavy nuclei
Show answer
Correct answer: B. Fusion of lighter nuclei

In the core of the Sun, at a temperature of about fifteen million kelvin, four hydrogen nuclei combine through the proton-proton chain to form one helium nucleus.

Q6673.Indian PolityHard

Which of the following statements about the Inter-State Council is correct?

  1. A.Its recommendations are binding on the States
  2. B.It is chaired by the Union Home Minister
  3. C.Its Standing Committee was constituted in 1996 and is chaired by the Union Home Minister
  4. D.Only the Chief Ministers of States are its members
Show answer
Correct answer: C. Its Standing Committee was constituted in 1996 and is chaired by the Union Home Minister

A Standing Committee of the Inter-State Council was constituted in 1996 for continuous consultation between the Centre and the States, and it is chaired by the Union Home Minister while the Council itself is chaired by the Prime Minister.

Q6675.Indian PolityMedium

Which article of the Constitution empowers Parliament to provide for the adjudication of disputes relating to the waters of inter-State rivers?

  1. A.Article 262
  2. B.Article 263
  3. C.Article 252
  4. D.Article 249
Show answer
Correct answer: A. Article 262

It allows Parliament to provide by law for the adjudication of disputes over the waters of inter-State rivers and river valleys, and its second clause allows Parliament to bar the jurisdiction of the Supreme Court and of every other court in such a dispute.

Q6676.Indian PolityHard

Under which Act was the North Eastern Council constituted?

  1. A.The States Reorganisation Act, 1956
  2. B.The North Eastern Council Act, 1971
  3. C.The North-Eastern Areas (Reorganisation) Act, 1985
  4. D.The Government of Union Territories Act, 1963
Show answer
Correct answer: B. The North Eastern Council Act, 1971

The north-eastern States were not placed in any of the five Zonal Councils, so Parliament gave them their own body by this Act, with headquarters at Shillong; Sikkim was added as a member in 2002.

Q6677.Indian PolityHard

The Inter-State Council set up in 1990 followed the recommendation of which commission?

  1. A.The Punchhi Commission
  2. B.The Sarkaria Commission
  3. C.The Rajamannar Committee
  4. D.The Dhar Commission
Show answer
Correct answer: B. The Sarkaria Commission

Appointed in 1983 under Justice R. S. Sarkaria to review Centre-State relations, it submitted its report in 1988 and pressed for a permanent Inter-State Council under Article 263; the Council was created by a presidential order in 1990.

Q6678.Indian PolityMedium

Full faith and credit is to be given throughout the territory of India to the public acts, records and judicial proceedings of the Union and the States under which article?

  1. A.Article 256
  2. B.Article 261
  3. C.Article 301
  4. D.Article 131
Show answer
Correct answer: B. Article 261

This article makes the public acts, records and judicial proceedings of the Union and of every State valid and provable everywhere in India, and it declares that the final judgments and orders of civil courts in any part of India may be executed anywhere in the country.

Q6680.Indian PolityEasy

Who acts as the chairman of each of the five Zonal Councils?

  1. A.The Prime Minister
  2. B.The Union Home Minister
  3. C.The senior-most Governor of the zone
  4. D.The Chief Minister of the largest State of the zone
Show answer
Correct answer: B. The Union Home Minister

The States Reorganisation Act makes the Union Home Minister the common chairman of all five Zonal Councils, so that the Centre and the States of a zone meet under one presiding officer.