In maharashtra most people speak marathi, ie, majority speaks marathi and comparatively less people speak Hindi. Hence hindi is a minority.

To get your admission done in this college your mother tongue should be Hindi also on your leaving certificate of 12th standard your mothertongue language must be clearly mentioned as Hindi. That's it.

Feel free to ask me in the comment box if you are having any further doubts

hope you find it helpful 

Good Luck!