Hey,
The choice of college has to do a lot with the course you want to do specialisation. A good college can be measured on several scales such as the faculty, environment,infrastructure and also the placement.
Here is the list of some of  the colleges in Odissa which offer post graduate courses:
Rama Devi Women's University
Royal School of Management and Technology
Centurion University of Technology and Management
Fakir Mohan Autonomous College
Indian Institute of Technology,Bhubaneshwar
Satwik Institute of Professional Studies
Utkal University
Regional College of Management
Attitude Business College
Bhadrak Autonomous College
Chitalo Mohavidayalaya
Hope this helps.
Good luck.

Hello ,
University best  for PG :-
1) National Institute of Technology, Rourkela
2) KIIT UniversityBhubaneswar
3) Indian Institute of Technology, Bhubaneswar
4) Biju Patnaik University of Technology,
5) Centurion University of Technology and Management, Bhubaneswar
6) International Institute of Information Technology, Bhubaneswar
7) Ravenshaw University, Cuttack
8) All India Institute of Medical Sciences,
Bhubaneswar
9) National Law University, Orissa
10) Central University of Orissa, Koraput
11) Gangadhar Meher University, Sambalpur
12) Shri Jagannath Sanskrit Vishvavidyalaya, Pur I
HOPE IT HELP !!!!