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.