I m doing bsc in physics honors, n i m intrested in astro physics. can u please inform me some best colleges offring this course in Msc ?

i wanted to know the colleges that offer Msc in astro physics n also what is the cutoff mark required n how about the questions partent in entrance test? As i m doing bsc in physics honors n i have mathematics pass.i m in final year now, which exam i have to appear to get into the subject i want to?