GSLV MK. I flight D1
This was the first developmental flight of the GSLV Mk.I featuring Russian cryogenic engine KVD-1. It was used to place an experimental satellite GSAT-1 into the orbit. However, due to sub-optimal performance and lack of fuel the vehicle did not achieve the intended orbit and the satellite had to maneuver itself using onboard fuel to correct the shortfall. ISRO claims the launch to be successful. In a 2014 interview, ISRO Chairman K. Radhakrishnan attributed the failure to incorrect mixture ratio used in the cryogenic upper stage.
GSLV MK. II flight D5
This was the second test flight with indigenous cryogenic stage CE-7.5 and the first successful launch with the CE-7.5. The flight lifted and successfully placed the 1,982 kilograms (4,370 lb) GSAT-14 into the orbit. This flight became the harbinger of successful launch with the indigenous cryogenic stage.
GSLV MK. II flight F09
This was the fourth consecutive successful flight of GSLV Mk. II with indigenous cryogenic engine. The flight placed the regional satellite South Asia Satellite was previously named as South Asian Association for Regional Cooperation (SAARC) Satellite. The satellite was a gift from India to its neighbors to bolsters Prime Minister Narendra Modi's neighborhood first policy Afghanistan, Bangladesh, Bhutan, Maldives, Nepal and Sri Lanka are the users of the multi-dimensional facilities provided by the satellite.
As of 26 April 2021 All launches have occurred from the Satish Dhawan Space Centre, known before 2002 as the Sriharikota Range (SHAR).
the GSLV has made 13 launches, with 8 successfully reaching their planned orbits, three outright failures and two partial failure, yielding a success rate for GSLV MK. I at 29% (or 57% including the partial failure) and 86% for Mk. II variant.