In order to get admission in a college you'll have to fill their application form which will be available in their college website. And then you'll have to select the exams you have opted. For example if you want to get into BIMTECH Noida then select the exam through which you want to get admission, i.e. MAT and then they may ask you for your scores that you'll have to upload. And based on that they'll give you a call.