I want to study M.Sc in mathematics under distance learning in Assam. What should I do?

Dear Arindom, You can try IGNOU's distance learning program. It is a very well established brand name in the field of distance education. The University is internationally renowned. Kindly visit the below-mentioned URL for further details: http://www.ignou.ac.in/ignou/aboutignou/school/sos/prog

Fill up the forms as required by the university. It's better if you give for a regular course. You will gain more experience and learning