Hi vyshnav, 

Well as for jipmer the main documents that you need to carry with you are:

1)JIPMER admit card

2)Valid id proof(aadahar card/passport). No other id proof other than these shall be acceptable 

3)relevant photocopies of the same and passport size photograph.

There is no particular dress code for jipmer but avoid wearing dresses with big buttons, caps, scarfs, high soled shoes etc. 

Go for simple clothes so as to avoud aby trouble during frisking. 

Avoid carrying any electronics, watches etc. Log table, pens,rulers etc shouldn't be carried. 

Avoid wearing any kind of ornament as these arent allowed into the centre. 

Incase you have want to wear some customary outfit its advisable to reach the centre earlier so that the authorities can do proper frisking. 

All the best :)