In space mission design, a geostationary transfer orbit or geosynchronous transfer orbit is a highly elliptical type of geocentric orbit, usually with a perigee as low as low Earth orbit and an apogee as high as geostationary orbit. From Wikipedia
The Mahendragiri trial validated core subsystems of the 2,000 kN semicryogenic engine that will replace LVM3’s liquid core stage to boost payload capacity.