India, Nov. 2 -- The Indian Space Research Organisation (ISRO) has successfully launched its heaviest communication satellite, CMS-03, weighing 4,410 kg, into Geosynchronous Transfer Orbit (GTO) on Sunday, 2 November 2025, from the Satish Dhawan Space Centre, Sriharikota.

The satellite was carried onboard the LVM3-M5 rocket-the fifth operational flight of the next-generation Launch Vehicle Mark-3. The CMS-03 is designed to provide multi-band telecommunication coverage across the Indian mainland and the surrounding oceanic regions, and is expected to operate for at least 15 years.

CMS-03 also acts as a replacement for the GSAT-7 series launched in 2013. With a payload capacity of 4,000 kg to GTO and up to 8,000 kg to Low Earth Orbit (LEO...