GSAT-20 is an Indian geostationary Ka-band high-throughput communications satellite. GSAT 20 is reportedly built on the I-6K unified modular bus and features a Ka-band high-throughput communications payload with 70 Gbps throughput utilizing multiple spot beams providing broadband services across the Indian region. It will be the first fully Electric Propulsion/EP enabled satellite which can be five to six times more efficient than chemical-based propulsion. It will be the first ISRO made satellite to move from Geostationary transfer orbit to Geosynchronous orbit using Electric Propulsion.
The Geosynchronous Satellite Launch Vehicle Mark III is a three-stage medium-lift launch vehicle developed by the Indian Space Research Organisation (ISRO). It is designed to launch satellites into geostationary orbit, and is intended as a launch vehicle for crewed missions under the Indian Human Spaceflight Programme.
The Indian Space Research Organisation (ISRO) is the space agency of the Government of India headquartered in the city of Bangalore. Its vision is to "harness space technology for national development while pursuing space science research and planetary exploration."INFO WIKI