The CE-7.5 is a cryogenic rocket engine developed by the Indian Space Research Organisation to power the upper stage of its GSLV Mk-2 launch vehicle.

The engine was developed as a part of the Cryogenic Upper Stage Project (CUSP).

It replaced the KVD-1 (RD-56) Russian cryogenic engine that powered the upper stage of GSLV Mk-1.

[4][5] The specifications and key characteristics of the engine are: Indian Space Research Organisation (ISRO) formally started the Cryogenic Upper Stage Project in 1994.

[10] The engine successfully completed the Flight Acceptance Hot Test in 2008,[6] and was integrated with propellant tanks, third-stage structures and associated feed lines for the first launch.