Maths Spl

You may opt B.Sc mathematics or B.Sc statistics etc
You may opt Indian Institute of Mathematics Chennai, University of Madras B.Sc Mathematics etc
The Institute of Mathematical Sciences (IMSc), founded in 1962 and based in the verdant surroundings of the CIT campus in Chennai, is a national institution which promotes fundamental research in frontier disciplines of the mathematical and physical sciences: Theoretical Computer Science, Mathematics
However, IMSc only admit students who have plan to do it upto PhD level
Another option is B.sc almost all universities offer this but prominent is Indian Statistical Institute Pune Kolkata and others
It is a central government institute, devoted to research, teaching & application of not only statistics and allied sciences, but also the natural sciences, social sciences and their interface with the statistics. It has been accorded the status of an INSTITUTE OF NATIONAL IMPORTANCE, by an Act of Parliament, 1959.
By virtue of this, it is:
A University which is empowered to award degrees such as B. Stat., B. Math, M. Stat., M. Tech, Ph.D.a farm of consultants helping industries both service and manufacturing sectors to enhance business benefits. A central place to promote research along with National and International agencies.