Sriharikota (Andhra Pradesh) Nov 2 (PTI) ISRO will launch its heaviest satellite onboard an Indian rocket on Sunday, when the heavylift LVM3M5 vehicle will carry a 4,410 kg communication satellite to a Geosynchronous Transfer Orbit (GTO).

ISRO's CMS-03 satellite is all set to be launched from this space port and the countdown is "progressing smoothly", ISRO officials said on Sunday.

This will be the heaviest satellite to be launched from Indian soil and into a GTO, the space agency said. Also, this is ISRO's heaviest satellite to be launched using a home-made rocket.

The Bengaluru-headquartered space agency has been utilising launch vehicles provided by France-headquartered Arianespace for launching over 4,000 kg heavy satellites from French Guiana. ISRO had previously launched its heav

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