Most of the entrances for UG are for Medical and Engineering courses. Apart from this top universities also organize entrance test for general courses (BA/BSC/BCOM) like DUET, BHU-UET etc. Also there are exams for Law like CLAT etc. So you have a broad set of entrance examination depending upon you which course you want to admit in.

Your question is quite inappropriate. So I would recommend you to get back to career360.com (//career360.com) with proper question specifics so that we can help you out.

Good eve!