I am an ST candidate trying to get admission through AIEEE?

In the website www.ccb.nic.in, therez a section that states proformas for OBC and other categories, out der, there is an application form, soo i wanted to know do i need to fill that form also and get it to the reporting centre during the counselling process or is my caste certificate that i already have enough to be presented there for the admission procedure???