Why Correct: The Sino-Indian War began on October 20, 1962, when Chinese forces attacked Indian positions in Ladakh and across the McMahon Line in the North-East Frontier Agency (now Arunachal Pradesh).
Distractor Analysis: 1952 marks the start of India's first Five-Year Plan. 1971 is the year of the Indo-Pakistani War that resulted in Bangladesh's independence. 2001 saw the Indian Parliament attack and Operation Parakram, a military standoff with Pakistan.
Takeaway: China declared a unilateral ceasefire on November 21, 1962, after advancing into Indian territory, and the war formally ended with the Line of Actual Control remaining disputed.

Why Correct: Sardar Vallabhbhai Patel, as India's first Home Minister and Deputy Prime Minister, established the Indian Administrative Service (IAS) in 1948 to replace the colonial Indian Civil Service.
Distractor Analysis: Gobind Ballabh Pant served as Home Minister from 1955 to 1961 and led the States Reorganisation Commission. S. B. Chavan was Home Minister in 1986–1988 and 1993–1996, focusing on internal security. V. K. Krishna Menon was Defense Minister from 1957 to 1962 and a key diplomat at the UN.
Takeaway: Sardar Patel also integrated over 500 princely states into India and is called the 'Iron Man of India' for his role in national unity.

Why Correct: The Treaty of Peace, Friendship and Cooperation between India and the Soviet Union was signed on August 9, 1971, providing India with strategic support during the Bangladesh Liberation War.
Distractor Analysis: 1956 saw the Suez Crisis and India's leadership in the Non-Aligned Movement. 1980 marked the Soviet invasion of Afghanistan, which complicated India's foreign policy. 1975 was the year of India's Internal Emergency, a domestic political event.
Takeaway: This treaty remained valid for 20 years until 1991 and included mutual security assurances, shaping India's Cold War diplomacy.

Why Correct: Astronomy is the scientific study of celestial objects including stars, planets, galaxies, and the universe as a whole.
Distractor Analysis: The Moon is a specific celestial body studied in astronomy, not the entire field. The sky is the visible atmosphere from Earth's surface, not the scientific study domain. The Sun is a specific star studied in astronomy, not the definition of the field.
Takeaway: Astrophysics applies physics principles to astronomical phenomena, while cosmology studies the origin and evolution of the universe.

Why Correct: The Survey of India (SOI), headquartered at Dehradun, is the national mapping agency responsible for publishing topographical maps in India.
Distractor Analysis: NATMO (National Atlas and Thematic Mapping Organisation) produces thematic and national atlases. GSI (Geological Survey of India) conducts geological mapping and mineral exploration. ZSI (Zoological Survey of India) studies animal diversity and taxonomy.
Takeaway: The Survey of India was established in 1767 and operates under the Department of Science and Technology.

Why Correct: Darjeeling Tea received India's first Geographical Indication (GI) tag in 2004-05, registered under the Geographical Indications of Goods (Registration and Protection) Act, 1999.
Distractor Analysis: Cardamom has multiple GI registrations but not the first. Basmati rice (likely misspelled as Basmau) received GI protection later. Gobindobhog rice is a West Bengal GI product registered after Darjeeling Tea.
Takeaway: The GI Act came into force in 2003, with Darjeeling Tea being the inaugural registration; subsequent early GIs included Aranmula Kannadi (2004) and Pochampalli Ikat (2005).

Why Correct: The Richter scale measures earthquake magnitude (energy released) using logarithmic values from seismograph readings.
Distractor Analysis: Metric scale measures length in meters and centimeters. Quake scale is not a standard scientific term. Epicenter scale does not exist; the epicenter is the point on Earth's surface directly above the earthquake focus.
Takeaway: The Mercalli intensity scale measures earthquake effects on people and structures, while the Moment Magnitude Scale (MMS) has largely replaced the Richter scale for modern large earthquakes.

Why Correct: Amravati is the legislative capital of Andhra Pradesh, established after the state's bifurcation in 2014, with the Andhra Pradesh Reorganisation Act designating it as the seat of the legislature.
Distractor Analysis: Secunderabad is a major city in Telangana, historically part of the Hyderabad metropolitan area. Hyderabad served as the joint capital for both Andhra Pradesh and Telangana for ten years post-bifurcation but is now the capital of Telangana. Vishakhapatnam is a major port city in Andhra Pradesh and serves as its executive capital.
Takeaway: Andhra Pradesh has three capitals: Amravati (legislative), Vishakhapatnam (executive), and Kurnool (judicial) - a unique administrative arrangement in India.

Why Correct: The Survey of India, established in 1767, has its headquarters in Dehra Dun (Dehradun), Uttarakhand, where it produces topographical maps and conducts geodetic surveys.
Distractor Analysis: Mussorie (Mussoorie) is a hill station in Uttarakhand. Shimla is the capital of Himachal Pradesh. Naini Tal (Nainital) is another hill station and district headquarters in Uttarakhand.
Takeaway: The Survey of India is the national mapping agency under the Department of Science & Technology, responsible for all geospatial data and boundary demarcation in India.

Why Correct: Survey of India, established in 1767, serves as India's national mapping agency and exclusively produces official topographical maps for the country.
Distractor Analysis: Geological Survey of India maps geological features and mineral resources. Defence Ministry handles military mapping but not civilian topographical maps. Geographical Survey of India does not exist; the correct agency name is Survey of India.
Takeaway: Survey of India also maintains the Great Trigonometrical Survey network and defines India's geodetic reference frame.

Why Correct: Satish Dhawan Space Centre, India's primary spaceport for satellite launches, occupies Sriharikota island in Andhra Pradesh's Nellore district, established in 1971.
Distractor Analysis: Tarapur houses India's first commercial nuclear power station in Maharashtra. Hyderabad serves as Telangana's capital and hosts ISRO's National Remote Sensing Centre. Chandipur is an Odisha coastal site containing DRDO's Integrated Test Range for missile testing.
Takeaway: Vikram Sarabhai Space Centre, ISRO's lead facility for launch vehicle development, operates from Thiruvananthapuram in Kerala.

Why Correct: Satish Dhawan Space Centre (SDSC) SHAR is ISRO's primary launch facility, located on Sriharikota island in Andhra Pradesh's Nellore district at approximately 13.7°N latitude.
Distractor Analysis: Chennai is the capital of Tamil Nadu and houses ISRO's Liquid Propulsion Systems Centre. Trombay in Mumbai hosts Bhabha Atomic Research Centre (BARC). Chandipur in Odisha is the location of the Integrated Test Range (ITR) for missile testing.
Takeaway: India's other major space facilities include Vikram Sarabhai Space Centre (VSSC) in Thiruvananthapuram, ISRO Satellite Centre (ISAC) in Bengaluru, and Space Applications Centre (SAC) in Ahmedabad.

Why Correct: Chamera is a hydroelectric power project on the Ravi River in Himachal Pradesh, not a nuclear power center.
Distractor Analysis: Narora (Uttar Pradesh), Kakrapara (Gujarat), and Kota (Rajasthan) are all operational nuclear power plants in India.
Takeaway: India's nuclear power plants are operated by NPCIL (Nuclear Power Corporation of India Limited), with Kudankulam (Tamil Nadu) being the largest nuclear power station.

Why Correct: Kachchh district in Gujarat covers approximately 45,652 square kilometers, making it India's largest district by area.
Distractor Analysis: Leh-Ladakh is the second largest district at about 45,110 square kilometers. Jaisalmer ranks third at 38,401 square kilometers. Baster is a district in Chhattisgarh with much smaller area. Burdwan is a district in West Bengal with relatively small area.
Takeaway: Among India's largest districts by area, the top three are all located in western/northern regions: Kachchh (Gujarat), Leh-Ladakh (Ladakh UT), and Jaisalmer (Rajasthan).

Why Correct: ONGC is the Oil and Natural Gas Corporation, a Maharatna public sector undertaking under the Ministry of Petroleum and Natural Gas.
Distractor Analysis: Oil and Natural Gas Commission was the original name when established in 1956, but it became a corporation in 1994. Organization of Non-Government Companies and Organization of Non-Companies Government are fabricated expansions with no factual basis.
Takeaway: ONGC Videsh Limited is its international arm for overseas exploration and production, while Oil India Limited is another major national oil company under the same ministry.

Why Correct: Imphal serves as the capital city of Manipur, a northeastern state of India.
Distractor Analysis: Arunachal Pradesh has Itanagar as its capital, Nagaland's capital is Kohima, and Tripura's capital is Agartala.
Takeaway: Remember that Shillong is the capital of Meghalaya, another northeastern state often tested alongside these.