Hello Laxmigupta ,

There is no difference between Autonomous government colleges and Government colleges .

Generally there are two types of universities

1. Affiliated Colleges  .
2. Autonomous Universities  .

Autonomous  Universities means it don't follow other college rules and regulations they have their own Rules , System and Curriculum. They correct students exam papers with experience campus faculty in their college .

Affiliated Colleges means it follow college rules and regulations by affiliated university and exam papers also corrected by outside campus faculty .

I think this answer will help you lot .

All the best !!!!