• First acquire a seat in a college in puna universitie
• Then go to your uni and ask for university transfer application
• Getting university transfer certificate is easy complications arises in getting TC in your present college as thy may demand the fee for your remaining tenure up front to release you from their college
• Once the above process is complete pay fee in your puna college and enjoy your studies

In short
Its possible to transfer universities but its defnately hard,tedious, frustrating,and time consuming work if its worth for you you may try it