I see that you have got 85 rank in OJEE and you want to join any governmental college for MCA. I have some college based on previous year rank. Those are:-

College of engineering and technology

Fakirmohan university

Institute of information and management technology

Ravenshaw university, calicut

Utkal university Van Vihar

Vir Surendra Sai Institute of Technology

These are some of the best colleges which you will get .