Astronomer

Hello Om Gupta, It's very nice to SEE your interest in becoming an astronaut for India. However in the present scenario ISRO or the government of India have selected pilots from the Indian Air Force to the astronauts for the manned mission which ISRO is planning to launch. There is no college through which you can go and then become an astronaut. In the initial periods all the countries who have sent humans to the space have selected pilots from their respective air forces as the astronauts. So if your intention is to become an astronaut then you have to first become pilot in the Indian Air Force. Best wishes to you.