What was the main task of Chandrayaan-3 that Chandrayaan-2 had failed to achieve?

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Making a safe and soft landing on the lunar surface. The correct answer is making a safe and soft landing on the lunar surface. ISRO lists a safe soft landing as the first goal of Chandrayaan-3. NASA says ISRO lost contact with the Chandrayaan-2 lander shortly before touchdown in September 2019. Vikram then landed on 23 August 2023. Entering an orbit around the Moon is wrong because that is not the step Chandrayaan-2 failed at. Placing a rover inside the lander is wrong because that is how the rover travelled, not the failed task. Carrying a separate orbiter is wrong because Chandrayaan-3 carried a propulsion module and used the old orbiter only as a backup link. Memory hook: the lander is what failed in 2019, so the landing is what had to work in 2023. Read more: Chandrayaan-3: India's South Pole Landing and Its Systems, NASA's Juno Mission: Unlocking Jupiter and Planetary Origins.

National Space Day is observed on which date, chosen to honour the Chandrayaan-3 landing?

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