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Topic 249 · Science, Technology & Space

ISRO: LVM3 heavy lift, PSLV-C62 failure

10 MCQs · tap an option to check it · All answers

Revise the 12 points first Book 1 RATNA

Core Trigger: PSLV-C62 failed on 12 January 2026 after a third-stage anomaly, losing EOS-N1 and 15 co-passenger payloads.
Commercial Flight: LVM3-M6 launched AST SpaceMobile's BlueBird Block-2 from Sriharikota on 24 December 2025 under an NSIL contract.
Current Head: V. Narayanan, ISRO Chairman, said a detailed analysis of the PS3 stage anomaly had been initiated.
Key Figure: BlueBird Block-2 weighed about 6,100 kg, the heaviest payload carried by an Indian rocket. PSLV has four stages.
Failure Record: This was the second successive PSLV failure after PSLV-C61 (EOS-09) in May 2025; 16 payloads were lost.
Stakeholders: NSIL, the commercial arm of ISRO under the Department of Space, contracted with US firm AST SpaceMobile.
India Link: GISAT-1A is the Earth-observation satellite meant to replace GISAT-1, lost in 2021; PSLV reliability now draws scrutiny.
Headquarters: ISRO is headquartered in Bengaluru, Karnataka; its launches take place from Sriharikota, Andhra Pradesh.
Founded: ISRO was formed in 1969 from INCOSPAR (1962); NSIL was incorporated in 2019 to commercialise space products.
Landmark: The Outer Space Treaty (1967) bars national appropriation of outer space; India is a party to it.
Policy: The Indian Space Policy 2023 gives ISRO research tasks and lets IN-SPACe authorise private space activity.
Doctrine: Under the Liability Convention (1972), a launching state is absolutely liable for damage its space object causes on Earth.

Question 1 of 10

PSLV-C62 failed on 12 January 2026. Which primary satellite was lost?

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Answer: (B) EOS-N1

Core Trigger: PSLV-C62 failed on 12 January 2026 after a third-stage anomaly, losing EOS-N1 and 15 co-passenger payloads.From Book 1 RATNA, topic 249, point 1

Question 2 of 10

LVM3-M6 launched whose BlueBird Block-2 satellite on 24 December 2025?

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Answer: (D) AST SpaceMobile

Commercial Flight: LVM3-M6 launched AST SpaceMobile's BlueBird Block-2 from Sriharikota on 24 December 2025 under an NSIL contract.From Book 1 RATNA, topic 249, point 2

Question 3 of 10

Who is the ISRO Chairman?

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Answer: (D) V. Narayanan

Current Head: V. Narayanan, ISRO Chairman, said a detailed analysis of the PS3 stage anomaly had been initiated.From Book 1 RATNA, topic 249, point 3

Question 4 of 10

BlueBird Block-2 weighed about how much, the heaviest payload on an Indian rocket?

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Answer: (C) 6,100 kg

Key Figure: BlueBird Block-2 weighed about 6,100 kg, the heaviest payload carried by an Indian rocket. PSLV has four stages.From Book 1 RATNA, topic 249, point 4

Question 5 of 10

PSLV-C62 was the second successive PSLV failure after which May 2025 mission?

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Answer: (A) PSLV-C61

Failure Record: This was the second successive PSLV failure after PSLV-C61 (EOS-09) in May 2025; 16 payloads were lost.From Book 1 RATNA, topic 249, point 5

Question 6 of 10

NSIL, ISRO's commercial arm, functions under which department?

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Answer: (B) Department of Space

Stakeholders: NSIL, the commercial arm of ISRO under the Department of Space, contracted with US firm AST SpaceMobile.From Book 1 RATNA, topic 249, point 6

Question 7 of 10

In which city is ISRO headquartered?

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Answer: (B) Bengaluru

Headquarters: ISRO is headquartered in Bengaluru, Karnataka; its launches take place from Sriharikota, Andhra Pradesh.From Book 1 RATNA, topic 249, point 8

Question 8 of 10

ISRO was formed in 1969 from INCOSPAR, set up in which year?

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Founded: ISRO was formed in 1969 from INCOSPAR (1962); NSIL was incorporated in 2019 to commercialise space products.From Book 1 RATNA, topic 249, point 9

Question 9 of 10

Which of the following is/are correct? 1. The Outer Space Treaty (1967) bars national appropriation of outer space. 2. India is not a party to it.

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Answer: (A) Only 1

Landmark: The Outer Space Treaty (1967) bars national appropriation of outer space; India is a party to it.From Book 1 RATNA, topic 249, point 10

Question 10 of 10

Which of the following is/are correct? 1. A launching state is absolutely liable for damage on Earth under the Liability Convention (1972). 2. IN-SPACe authorises private space activity.

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Answer: (C) Both 1 and 2

Policy: The Indian Space Policy 2023 gives ISRO research tasks and lets IN-SPACe authorise private space activity. Doctrine: Under the Liability Convention (1972), a launching state is absolutely liable for damage its space object causes on Earth.From Book 1 RATNA, topic 249, point 11, point 12

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