Yes, you can do M.Sc Mathematics privately, for admission in this course the applicant should have completed graduation in mathematics with minim 60% marks from any recognized university of India.

You can study this course in following colleges:

Chaudhary Charan Singh University
Guru Ghasidas University, Bilaspur
Indira Gandhi National Open University (IGNOU)
Jamia Millia Islamia, Jamia Nagar
University Of Delhi
Acharya Nagrajuna University Center for Distance Education
Alagappa University
Alagappa University
Alagappa University
Andhra University
Andhra University
Annamalai University
Bangalore University
Bharathidasan University
Bharathiyar university
Calicut University
Dr BR Ambedkar Open University
Kakatiya University
Kuvempu University Directorate of Distance Education
Madras University
Mahatma Gandhi University
Manonmaniam Sundaranar University
National Law School of India University
Osmania University
University of Madras
Netaji Subhash Open University
Nalanda Open University
University of Bombay
Yashwantrao Chavan Maharashtra Open University (YCMOU)
Jiwaji University