Yes,you will get admission with this score in your bachelor degree.
The eligibility criteria for M.Sc. Mathematics course in colleges like Christ University Bangalore, St Stephen's College New Delhi, Loyola College Chennai, Mount Carmel College Bangalore is graduation in any discipline with Mathematics and English as a main subjects with minimum 50% aggregate however institutes prefer students with a B.Sc. /B.E. /B.Tech. degree.
Hope this helps you. All the best.

Hello Shivu

Yeah actually for admission in PG mathematics the required eligibility is 55% in graduation and also some institute required one year experience in professional experience
All the best