Spent 7-8 hrs each day for 4-5 days on it: Engineer who spotted Vikram Lander

Shanmuga Subramanian, the engineer from Chennai who spotted the debris of Chandrayaan 2's Vikram Lander on the Moon has said, "I spent 7-8 hours each day for 4-5 days on it." "This is something that can be done by anyone with right knowledge," Subramanian, whom NASA credited, added. Subramanian compared images taken before and after scheduled landing date of Vikram.