The national space agency of India, the Indian Space Research Organization (ISRO), carries out duties of space-based applications, space exploration, and the advancement of associated technology.
It is one of the world's only six national space agencies with full launch capability, cryogenic engine deployment, extraterrestrial mission launching, and huge fleets of man-made satellite operations. Since then, ISRO has successfully developed several medium-lift launch vehicles, rocket engines, satellite systems, and networks that have allowed the organization to launch numerous deep space initiatives for space travel in addition to hundreds of domestic and international satellites. The GAGAN and NAVIC satellite navigation systems run by ISRO are the world's biggest constellation of remote-sensing satellites.