What is vikas engine isro?

Vikas engine is a liquid-fuel rocket engine developed by the Indian Space Research Organization (ISRO). It is used to power the second stage of the Polar Satellite Launch Vehicle (PSLV) and the second and fourth stages of the Geosynchronous Satellite Launch Vehicle (GSLV). The engine uses UH-25 (a mixture of hydrazine hydrate and unsymmetrical dimethylhydrazine) as fuel and nitrogen tetroxide as an oxidizer. The development of the Vikas engine began in the 1980s, and it was first used in 1993 on the PSLV-D1 mission. The engine has undergone several upgrades since then, including increasing its thrust by more than 50%. The Vikas engine has been a critical component of India's space program, powering numerous successful satellite launches and planetary missions, including Chandrayaan-1 and Mars Orbiter Mission.