Hey,
You can go for diploma in space technology which is a 3 years course. The eligibility criteria is that the candidate must have completed 10th from a recognised board. Punjab University, Patiala offers this course.
If you have completed graduation, then you can go for post graduation in space science and application. This program is provided by Gujarat University, Navrangpura. The duration of course is 2 years.

Hope this helps!