Hello.. Santosh

Based on your cut off, entrance marks and interview performance, a rank list is prepared. SSN informs it's decision through phone call.  So another important thing is to make sure that you give a phone number which you would definitely attend and after the entrance exam do attend the calls as it may be made to inform you about your admission.

The admission call is generally made within a week or two. Finally, you pay the prescribed fees in person at the college campus and confirm your admission. 

Best of luck.