Hello Mohit, I have mentioned the procedure :

• Primarily, you have to Submit an application to the college in which you have taken admission and want to withdraw.
• Mention the certificates you have submitted in that.
• Then have to fill the cancellation form available on the official website.
• You will have to pay a cancellation fee and take the printout of cancellation slip.
• The first admission which is canceled does not return fee immediately instead takes duration of 2-3 month. You need to manage accordingly.
• If the admission fee at the second college is similar to the first, it will be adjusted automatically. If the course/ tuition fee is more than the former college, you will have to pay the balance amount to confirm the admission.
• If the fee is less than the former college, the excess amount will be refunded to the your account after a few weeks.

Thankyou , I hope it helped you, feel free to approach for further queries.