Hello Sunny , The requirement of documents vary from college to college but there are some specific documents which are required by every college . Some of them are 

Statement of marks of qualifying examination of University / College 

 Passing certificate

Proof of Date of Birth 

Transfer certificate of college last attended

Migration certificate

You may be asked to submit 2- 3 passport size photographs of yours at time of admission for Identity card etc.

Hope it would be useful !!!