Hii!
There are a number of good Colleges and Universities across India providing the msc Mathematics ourse. Some of them are-
* Government Arts College, coimbatore
* Chikkanna government Arts College, Coimbatore
* Government Degree college, Rajahmundry
* Government College, chavara, kollam
* LRG government Arts College for women, coimbatore
* Dr. Ambedkar govt Arts College, chennai
* Pandit shambhunath shukla government PG College, shahdol
* Govt Narmada mahavidyalay, mp
* Government Victoria College
* University of Calcutta
* TIFR
* IMSc
* University of Hyderabad
* CMI
* IISC
ETC.,
Hope this helps.
Good luck!

Hi,
Following are the best government colleges for MSc Mathmatics
The New College ( TNC) , Chennai
Miranda House University College For Women , Delhi
Hindu College , New Delhi
Hansraj College ( HRC) , Delhi
Ramjas College , New Delhi
Kanoria PG Mahila Mahavidyalaya ( Kanoria College) , Jaipur
Kamla Raja Girls Govt. Post-Graduate College ( KRGGPGC) , Gwalior
National Institute Of Technology ( NIT, Durgapur) , Durgapur
Guru Nanak Dev University College ( GNDUC) , Jalandhar
Indian Institute Of Technology ( IIT KANPUR) , Kanpur
Indian Institute Of Technology ( IIT ROPAR) , Ropar
Indian Institute Of Technology ( IITB) , Mumbai
Maharaja's College , Ernakulam
CENTARL UNIVERSITY OF RAJASTHAN ( CUR) , Kishangarh
National Institute Of Technology ( NIT MANIPUR) , Imphal
K.S.R College Of Arts & Science ( KSRCAS) , Namakkal
Government Engineering College ( GEC Bikaner) , Bikaner
Department Of Management Studies, Pondicherry University ( DMS) , Puducherry
Indian Institute Of Technology Delhi ( IITD) , Delhi
Guru Nanak Khalsa College ( GNKC) , Yamunanagar