Isro plans to launch India's heaviest rocket on June 5

Isro has been building heavier rockets to reduce dependency on foreign launchers

The Indian Space Research Organisation (ISRO) is planning to launch a communication satellite GSAT-19 using its heaviest rocket GSLV Mark-III on June 5.

GSLV Mk-III satellite is capable of launching 4-tonne satellites to the geosynchronous transfer orbit (GTO). It is a three-stage vehicle with two solid motor strap-ons (S200), a liquid propellant core stage (L110) and a cryogenic stage (C25).

GSLV Mk-III-D1 is the first developmental flight, carrying a 3,136-kg GSAT-19 satellite to a GTO. The vehicle is configured with a 5-metre ogive payload fairing and a slanted strap-on nose cone to provide aerodynamic robustness.

The GSAT-19 Mission is scheduled to be