Mathematics

Sorry to say, you are not eligible. You should have studied Physics and Mathematics as cognate subjects i.e. in all 3 or 4 years of your undergraduate program and secured above 50% to be eligible for Master's degree.

After completing your B.Sc in Mathematics, you could pursue a course in M.Sc Astronomy from some of the top colleges in India. This would open up a number of avenues for you in this field. B.Sc. in Mathematics should help you as Mathematics is a major part of astronomy and space research. If needed, you could plan for a PhD in astronomy and become a teacher in this field.

Hi,
Please refer to the link provided below for a list of colleges which offer courses in M.Sc. Mathematics in Mumbai:
https://www.shiksha.com/science/colleges/m-sc-mathematics-colleges-mumbai

Please refer to the link mentioned below for the list of colleges which offer M.Sc through correspondence or distance:
https://www.shiksha.com/science/colleges/distance-correspondence-m-sc-colleges-india