Hello Harshad,

Diploma in space science is a 3 year diploma, offered by Indian institutes, such as The Punjabi university, Patiala. Topics such as Astronomy, Astrophysics, Cosmology, stellar Science, Planetary Science, are taught. You may be recruited to companies such as ISRO, DRDO, HAL, NAL, HCL, JPMorgan chase etc..

Hope this Helps