Bengaluru: India’s heaviest communications satellite till date – the advanced CMS-03 – is all set to be launched from the Satish Dhawan Space Centre in Sriharikota on November 2, 2025.
This satellite will strengthen India’s space-based communications and maritime security capabilities.
The integration of CMS-03 atop the Launch Vehicle Mark-3 (LVM-3) marks a key milestone in the ability of Indian Space Research Organisation (ISRO) to launch ever-larger and more advanced payloads, thereby enhancing India’s space infrastructure and global standing.
This mission will mark the fifth operational flight of the LVM-3. At 4,400 kg, CMS-03 is India’s heaviest communication satellite. The mission will involve placing it into a Geosynchronous Transfer Orbit (GTO).
Developed by ISRO, the CMS-03 is a multi-band communication satellite designed to provide robust telecommunication coverage across India and an expansive oceanic region surrounding the subcontinent. Its payload includes transponders capable of supporting voice, data, and video links over C, extended C, and Ku communication bands.
The CMS-03 will augment India’s maritime defense by enabling secure communication links between naval ships, aircraft, and submarines.
It will significantly enhance connectivity, provide sharper and higher-capacity bandwidth, and improve digital access to remote territories, facilitating both civil services and strategic applications.
The satellite will allow the Indian military more reliable voice, data, and video transfer capabilities across strategically important regions.
The launch will also be yet another test for the LVM-3 that is fast emerging as India’s workhorse heavy-lift vehicle. It was the LVM-3 that propelled the Chandrayaan-3 mission to a historic lunar landing near the Moon’s south pole in July 2023.
Pre-launch operations are now underway and the rocket is fully assembled and on the launch pad. The liftoff Will underscore India’s leadership in the area of satellite communications and provide a boost to its ambitions in deep-space and human spaceflight missions.












