In order to get admission for MA in Hindi from IGNOU University, You should be Graduate from the recognized University. The medium of the programme is in Hindi Language. You can check its complete detail with the given below link on Page No. 19.

http://ignou.ac.in//userfiles/common-prospectus-english.pdf

It depends on your capability that you can pursue the programme in Hindi or Not, You can read all about the information & decide yourself.

Good Luck!