First of all let me tell you what are better choices
1. Iits
2. IIms
3. Nits
4. Finally private  universities like manipal, bits etc.
So first you check out how to get admissions in them, write entrance exams like gate, Net and private university exams.
So its better choose college with good environment, placements & research and development facilities.

Www.Mhrd.gov.in

Go through ths link for central universities in India offering pg  courses

If you would like to join a university in one particular state u need to mention it clearly in your question...

Hello Candidate,
Depending upon your branch you can choose several good government and private institutions.
You easily able to get each exam related details for any PG entrance exam on Careers360 .

You can check the rankings, placement and other details on Careers360.

Firstly tell about in which course you want to do PG than we can help you more.

If you have any questions remain than comment below.
Good luck...