First of all congratulations for your results. Now you asked for the admission in ipu. You have to fill the online application form to get admission in ipu. As ipu is govt university, then you have to applied for it. Some colleges are-

Amity Institute of Education

Maharaja Surajmal Institute

Gitarattan Institute Of Advanced Studies & Training.

Yes you can try for the minority certificate as in sikh minority has applied in ipu university.