The Geosynchronous Satellite Launch Vehicle or GSLV lifted off at 4.57 this evening from Sriharikota in Andhra Pradesh, carrying a 450-crore communications satellite that Prime Minister Narendra Modi has gifted to six South Asian neighbours. "I congratulate the team of scientists who worked hard for the successful launch of South Asia Satellite. We are very proud of them," PM Modi has tweeted, announcing that leaders of the beneficiary countries were joining him in a video-conference to celebrate the launch.