ISRO successfully launched its heaviest communication satellite, CMS-03 (also known as GSAT-7R), aboard the LVM3-M5 rocket on November 2, 2025, from Sriharikota. The 4,410 kg satellite is designed to provide secure, high-bandwidth, multi-band communication for the Indian Armed Forces, especially the Navy, marking a major milestone in India’s heavy-lift space capabilities.
Kudos Team #ISRO!
— Dr Jitendra Singh (@DrJitendraSingh) November 2, 2025
India’s #Bahubali scales the skies, with the successful launch of #LVM3M5 Mission!
“Bahubali” as it is being popularly referred, LVM3-M5 rocket is carrying the CMS-03 communication satellite, the heaviest ever to be launched from the Indian soil into a… pic.twitter.com/ccyIPUxpIX
Key Highlights of the CMS-03 Mission
- Launch Vehicle: LVM3-M5 (Bahubali), India’s most powerful rocket
- Launch Site: Satish Dhawan Space Centre (SDSC), Sriharikota
- Date & Time: November 2, 2025, at 17:26 IST
- Satellite Mass: ~4,410 kg — heaviest communication satellite launched from Indian soil
- Orbit: Geosynchronous Transfer Orbit (GTO), ~29,970 km x 170 km
- Mission Purpose: Replace GSAT-7 (2013) and enhance secure naval and defense communications
We got the look of #CMS03 🛰️ #ISRO pic.twitter.com/UMIxyO8q7U
— ASTROSPACE (@Arslanshaikh_) November 2, 2025
Strategic Importance
- Defense Communications: Tailored for the Indian Navy, ensuring encrypted, high-capacity links
- Indigenous Capability: Fully developed in India, reinforcing strategic autonomy
- Heavy-Lift Milestone: First >4,000 kg satellite launched into GTO from Indian soil
- Continuity & Upgrade: Replaces GSAT-7 with greater bandwidth and wider coverage
Comparative Context
| Mission | Rocket | Payload Mass | Orbit | Purpose |
|---|---|---|---|---|
| CMS-03 (2025) | LVM3-M5 | 4,410 kg | GTO | Secure defense communications |
| GSAT-7 (2013) | Ariane-5 | 2,625 kg | GTO | Naval communications |
| Chandrayaan-3 (2023) | LVM3-M4 | 3,900 kg | Lunar Transfer | Lunar exploration |
Broader Implications
- For India’s Space Program: Strengthens ISRO’s credibility in the global heavy-lift launch market
- For National Security: Enhances maritime domain awareness and secure communication
- For Future Missions: Validates LVM3’s readiness for heavier payloads, including crewed missions
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