Powered by a 190 hp Continental, the four seat Krishak is a multi-purpose development of the Pushpak. The HAOP-27 Krishak being manufactured as a liaison aircraft for the Indian Air Force and Army, the first flown in 1965.
Hindustan HAOP-27 Krishak Article
In 1961 Hindustan was developing the 90 hp PE-90H flat four piston engines for future versions of the Pushpak.
HAOP-27 Krishak Mk.II
Engine: Continental O-470-J, 225 hp.
All Aero 