Although the procedure differs depending on the college, generally:

Following Registration and Selection for College (Offline Admissions):

Speak with the College : Find out about the documentation needed and offline admissions procedure. They may need to complete certain paperwork.
Verification of Documents : Bring your original mark sheets, certificates, registration paperwork, and any necessary photocopies to the college.
Payment of Fees: Pay the entry costs as directed by the college. This might be paid for with cash, a demand draft, or online.
Seat Confirmation: Your admission will probably be confirmed when your documents are checked and costs are paid. Perhaps the college will provide a letter of confirmation.

Hope this helps you!!