The launch of the Indian Navy's 4,400-kg communication satellite is scheduled for 5:26 pm from the second launch pad of the Satish Dhawan Space Centre in Sriharikota.

The Indian Space Research Organisation (ISRO) is all set to launch India's heaviest communication satellite, GSAT-7R (CMS-03), on Sunday.

The launch of the Indian Navy's 4,400-kg communication satellite is scheduled for 5:26 pm from the second launch pad of the Satish Dhawan Space Centre in Sriharikota.

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In a statement, the Indian Navy said, "This satellite is India's heaviest communication satellite to date, weighing more than 4,400 kg, and includes many indigenous, state-of-the-art components developed specifically to meet the Indian Navy's operational requirements."

The satellite GSAT 7R (CMS-03) would significantly enhance Navy's communications and strengthen its operational capabilities.

According to ISRO, CMS-03 is a multi-band communication satellite that will provide services over a wide oceanic region including the Indian landmass.

The satellite will be launched by the LVM3 launch vehicle which was used in the successful Chandrayaan-3 mission.

"CMS-03, weighing about 4400kg, will be the heaviest communication satellite to be launched to Geosynchronous Transfer Orbit (GTO) from Indian soil. The previous mission of LVM3 launched the Chandrayaan-3 mission, where in, India became the first country to land successfully near the lunar south pole," read an ISRO statement.

The LVM3-M5 launch vehicle has a height of 43.5 meters and a total liftoff mass of 642 tonnes. The vehicle uses three stages of propellants to enable the satellite to reach Geosynchronous Transfer Orbit (GTO).