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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

Q5001.Indian HistoryAsked in: UPSC CAPF · CAPF 2023, Paper IMedium

The ancient Indian medical treatise for horses called Ashvashastra is attributed to which one of the following persons?

  1. A.Vagbhatta of the seventh century
  2. B.The sage Shalihotra
  3. C.Bhartrihari of the seventh century
  4. D.Varahamihira of the sixth century
Show answer
Correct answer: B. The sage Shalihotra

Indian tradition credits Shalihotra with the science of horses, and veterinary medicine for horses came to be called Shalihotra Shastra after him.

Q5003.Indian HistoryAsked in: UPSC CAPF · CAPF 2023, Paper IHard

Consider the following statements with reference to Jainism: 1. Vardhamana Mahavira attained Kaivalyajnana outside the town of Jrimbhikagrama, on the banks of river Rijupalika and in the field of a householder named Samaga. 2. The state when the Karma particles actually begin to flow towards the Jiva to bind it is known as Asrava. Which of the statements given above is/are correct?

  1. A.1 only
  2. B.2 only
  3. C.Both 1 and 2
  4. D.Neither 1 nor 2
Show answer
Correct answer: C. Both 1 and 2

Both statements match the Jaina tradition: the place of Mahavira's enlightenment and the meaning of asrava. Mahavira left home at about thirty and spent some twelve years in hard penance.

Q5004.Indian EconomyAsked in: UPSC CAPF · CAPF 2024, Paper IMedium

Consider the following statements regarding instruments of Monetary Policy: 1. The Central Bank can increase the money supply by increasing the bank rate 2. The Central Bank can increase the money supply by purchasing securities from the public 3. The Central Bank can decrease the money supply by increasing the cash reserve ratio Which of the statements given above is/are correct?

  1. A.2 only
  2. B.2 and 3 only
  3. C.1 and 3 only
  4. D.1, 2 and 3
Show answer
Correct answer: B. 2 and 3 only

Buying securities puts money into the economy and raising the cash reserve ratio takes it out, but raising the bank rate reduces money supply instead of increasing it.

Q5006.Indian EconomyAsked in: UPSC CAPF · CAPF 2024, Paper IMedium

In recent years, which one among the following is the source of demand in the Indian economy in descending order?

  1. A.Private Consumption, Government Consumption, Net Exports, Gross Fixed Capital Formation
  2. B.Government Consumption, Private Consumption, Net Exports, Gross Fixed Capital Formation
  3. C.Private Consumption, Gross Fixed Capital Formation, Government Consumption, Net Exports
  4. D.Government Consumption, Private Consumption, Gross Fixed Capital Formation, Net Exports
Show answer
Correct answer: C. Private Consumption, Gross Fixed Capital Formation, Government Consumption, Net Exports

On the expenditure side of India's GDP, private consumption is the largest share, investment (gross fixed capital formation) comes next, then government consumption, and net exports come last.

Q5007.General ScienceAsked in: UPSC CAPF · CAPF 2025, Paper IMedium

Which one among the following statements is not correct?

  1. A.The reaction of methane and chlorine in sunlight produces hydrogen gas.
  2. B.Palladium catalyzes the addition of hydrogen gas on an alkene.
  3. C.Ethanol burns in oxygen to give carbon dioxide, water and releases heat and light.
  4. D.Unsaturated hydrocarbons burn with a sooty flame.
Show answer
Correct answer: A. The reaction of methane and chlorine in sunlight produces hydrogen gas.

Methane and chlorine react in sunlight to give chloromethane and hydrogen chloride, not hydrogen gas. This is a substitution reaction: CH4 + Cl2 → CH3Cl + HCl in the presence of sunlight.

Q5008.General ScienceAsked in: UPSC CAPF · CAPF 2025, Paper IMedium

Which of the following statements relating to carbon and its compounds are correct? 1. 1-Propyne has three double bonds. 2. The boiling point of acetic acid is higher than methane. 3. Ethanol reacts with sodium metal and produces hydrogen gas. 4. Esters give effervescence on reaction with sodium bicarbonate. Select the answer using the code given below.

  1. A.1 and 3
  2. B.2 and 3 only
  3. C.1 and 2
  4. D.2, 3 and 4
Show answer
Correct answer: B. 2 and 3 only

Acetic acid boils far above methane, and ethanol gives hydrogen with sodium, while statements 1 and 4 are false. Propyne (CH3–C≡CH) is an alkyne: it has one carbon–carbon triple bond and no double bonds, so statement 1 is wrong.

Q5009.General ScienceAsked in: UPSC CAPF · CAPF 2025, Paper IMedium

Which one among the following statements regarding gypsum is not correct?

  1. A.On heating gypsum at 373 K, it loses water molecules and becomes CaSO4 · H2O.
  2. B.On mixing with water, plaster of Paris changes to gypsum.
  3. C.Plaster of Paris is used for supporting fractured bones.
  4. D.Although gypsum possesses water of crystallization, it is not a liquid at room temperature.
Show answer
Correct answer: A. On heating gypsum at 373 K, it loses water molecules and becomes CaSO4 · H2O.

Gypsum heated at 373 K becomes calcium sulphate hemihydrate, CaSO4 · ½H2O, which is plaster of Paris, not CaSO4 · H2O as the statement says.

Q5010.Environment & EcologyAsked in: UPSC CAPF · CAPF 2026, Paper IMedium

Which one of the following factors is responsible for the spread of myxomatosis, a severe viral disease among rabbits?

  1. A.Higher water temperature
  2. B.Higher soil temperature
  3. C.High population density of rabbits
  4. D.Low population density of rabbits
Show answer
Correct answer: C. High population density of rabbits

Myxomatosis passes from rabbit to rabbit through biting insects and contact, so it spreads fastest where rabbits are crowded together.

Q5011.General ScienceAsked in: UPSC CAPF · CAPF 2026, Paper IEasy

Which of the following is/are the basic step(s) in genetically modifying an organism? 1. Identification of DNA with desirable genes 2. Introduction of the identified DNA into the host 3. Maintenance of introduced DNA in the host and transfer of the DNA to its progeny Select the correct answer using the code given below.

  1. A.1 only
  2. B.1, 2 and 3
  3. C.2 and 3 only
  4. D.3 only
Show answer
Correct answer: B. 1, 2 and 3

Making a genetically modified organism needs all three steps: find the useful DNA, put it into the host, and make sure the host keeps it and passes it on.

Q5012.Environment & EcologyAsked in: UPSC CAPF · CAPF 2026, Paper IEasy

In which one of the following regions of the Earth is the ozone hole prominently observed in the stratosphere?

  1. A.Equatorial region
  2. B.Arctic region
  3. C.Antarctic region
  4. D.Tropical region
Show answer
Correct answer: C. Antarctic region

The ozone hole, a sharp seasonal thinning of stratospheric ozone, forms every southern spring over Antarctica. During the long polar winter a strong circular wind, the polar vortex, isolates the air over Antarctica, and temperatures fall low enough to form polar stratospheric clouds.

Q5013.Environment & EcologyAsked in: UPSC CAPF · CAPF 2026, Paper IMedium

Which of the following statements about eutrophication is/are correct? 1. Eutrophication takes place in young lakes when the water is cold and clear. 2. Eutrophication is caused by nutrient enrichment in water bodies. Select the answer using the code given below.

  1. A.1 only
  2. B.2 only
  3. C.Both 1 and 2
  4. D.Neither 1 nor 2
Show answer
Correct answer: B. 2 only

Eutrophication is the enrichment of a water body with nutrients, so statement 2 is correct, while statement 1 describes the opposite condition.

Q5014.GeographyAsked in: NDA · NDA-I 2020, GATMedium

The speakers of major Indian languages belong to how many language families ?

  1. A.Two
  2. B.Three
  3. C.Four
  4. D.Six
Show answer
Correct answer: C. Four

The major languages of India belong to four language families: Indo-European (Indo-Aryan), Dravidian, Austric (Austro-Asiatic) and Sino-Tibetan. The Indo-Aryan branch of the Indo-European family is the largest, spoken by about three-quarters of Indians and including Hindi, Bengali, Marathi, Gujarati, Punjabi and Odia.

Q5019.Indian HistoryAsked in: NDA · NDA-II 2025, GATMedium

In the Harappan Civilization, traces of canals have been found at

  1. A.Banawali
  2. B.Lothal
  3. C.Shortughai
  4. D.Dholavira
Show answer
Correct answer: C. Shortughai

Shortughai, a Harappan trading settlement in north-eastern Afghanistan, is the site where traces of irrigation canals have been found. Most Harappan farmers relied on river floods and wells, and no canals have been found in the Indus heartland.

Q5020.EconomyMedium

Under Section 110 of which Act were the smuggled cigarettes and the truck seized?

  1. A.Customs Act, 1962
  2. B.Narcotic Drugs and Psychotropic Substances Act, 1985
  3. C.Central Goods and Services Tax Act, 2017
  4. D.Cigarettes and Other Tobacco Products Act, 2003
Show answer
Correct answer: A. Customs Act, 1962

Section 110 of that Act lets a customs officer seize goods believed liable to confiscation, and it was used to take the 43.2 lakh foreign-origin cigarettes and the truck carrying them in Mizoram.