ISRO on Monday successfully launched India's heaviest and most powerful rocket Geosynchronous Satellite Launch Vehicle (GSLV) Mark III. The rocket is designed to carry up to 4-tonne payloads to geostationary transfer orbit and 10-tonne to low-Earth orbit reducing India's reliance on foreign carriers for payloads over 2.2 tonnes. The rocket could be used to launch Indians into space, ISRO said.