The
CE-7.5 is a
cryogenic rocket engine developed by
ISRO 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.