On March 29, 2013 a Russian Space Craft established a new record by reaching the International Space Station (ISS) in only 6 Hours while earlier the space crafts used to take to the three days to reach the ISS which is the space craft?

The answer is B) Soyuz. On 29 March 2013, Soyuz TMA-09M docked with the ISS about six hours after launch, using a fast-track rendezvous profile. The usual approach had taken roughly two days, so the question's 'three days' is a loose figure. The core concept is that Soyuz is Russia's crew-carrying spacecraft, first flown in 1967 and used to ferry crews to the ISS.

• Sputnik-II (A): launched in 1957 and carried the dog Laika. It was an early, uncrewed satellite and never went near the ISS, which did not exist until 1998.
• Zond (C): a Soviet lunar programme spacecraft from the 1960s, built for circumlunar flights and tests. It was not a station ferry.
• Venera (D): a series of Soviet probes sent to Venus. It has no link to crew transport to any station.

For Mains, this ties into space diplomacy, India's own human spaceflight plans (Gaganyaan), and the cost and safety logic of crew transport. Rapid rendezvous is a useful idea for any future crewed mission.

Trap: aspirants pick Sputnik-II because it is the most famous early craft. Remember that the question asks about a crewed ISS ferry, which points straight to Soyuz.