There are hardly few cases of transfers but transfers are possible only between the Govt. Colleges of Maharashtra. Migration from other varsities was earlier an easy process as their was no credit based system.

If I could know your stream, I can help you better. 

But you can fill this form through the link for Migration offered by NMU.

http://www.nmu.ac.in/Portals/0/Forms%20Students/Application%20Form%20For%20Migration%20Certificate.pdf