Geosynchronous Satellite Launch Vehicle (GSLV) is designed to launch 2.0 ton class of satellites into Geosynchronous Transfer Orbit (GTO). The three stage GSLV adopts the flight-proven solid and liquid stages of ISRO’s Polar Satellite Launch Vehicle (PSLV) and a cryogenic upper stage. The first stage comprises a solid propellant core motor and four liquid propellant strap-ons. The second stage is powered by a single liquid propellant engine. The third stage is a Cryogenic Stage with 12 tons of propellant loading.
Comprehensive timeline of ISRO's journey through decades.