Published: 1 November 2025ISROScience & Technology
ISRO Successfully Launches CMS-03 (GSAT-7R) — India's Heaviest Communication Satellite for Navy
ISRO successfully launched the CMS-03 (GSAT-7R) satellite at 5:26 PM IST on November 2, 2025, using the LVM3-M5 rocket from the Second Launch Pad at Satish Dhawan Space Centre, Sriharikota. Weighing 4,410 kg, it is the heaviest communication satellite launched to GTO from Indian soil.
GSAT-7R is a multi-band military communication satellite for the Indian Navy, replacing the operational GSAT-7. It will transmit voice, video, and data among naval ships, submarines, aircraft, and Maritime Operation Centres across the Indian Ocean Region up to 2,000 km from India's coastline. The mission also featured an experimental re-ignition of the cryogenic upper stage.
Mains angle
Q: Discuss the strategic and technical significance of ISRO's CMS-03 (GSAT-7R) launch for the Indian Navy and indigenisation of defence space capabilities.
Answer (50 words):
On 2 November 2025 at 5:26 PM, ISRO launched the 4,410 kilogram CMS-03 (GSAT-7R) via LVM3-M5 from Sriharikota's Second Launch Pad — the heaviest communication satellite from India to geostationary transfer orbit. The naval multi-band satellite links ships, submarines, aircraft up to 2,000 kilometres from coast; cryogenic re-ignition demonstrated indigenous capability.
6-axis classification
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Linked questionEasy
ISRO's CMS-03 (GSAT-7R), launched in November 2025, is designed primarily for which user?
Explanation · Correct answer CGSAT-7R is a multi-band military communication satellite for the Indian Navy, replacing the operational GSAT-7, transmitting voice, video, and data among naval assets across the Indian Ocean Region.
Frequently asked questions
When did ISRO launch CMS-03, and which rocket carried it?
ISRO successfully launched the CMS-03 (GSAT-7R) satellite at 5:26 PM IST on November 2, 2025. It used the LVM3-M5 rocket from the Second Launch Pad at Satish Dhawan Space Centre, Sriharikota.
Why was the GSAT-7R launch weight significant?
The satellite weighed 4,410 kg. It is the heaviest communication satellite launched to GTO from Indian soil.
What is GSAT-7R's role for the Indian Navy?
GSAT-7R is a multi-band military communication satellite for the Indian Navy. It replaces the operational GSAT-7.
What communications will GSAT-7R support, and what experiment did the mission feature?
GSAT-7R will transmit voice, video, and data among naval ships, submarines, aircraft, and Maritime Operation Centres across the Indian Ocean Region up to 2,000 km from India's coastline. The mission also featured an experimental re-ignition of the cryogenic upper stage.
