Hello there,

Once you join second round seat from 15% All India Quota, you will not be allowed to vacate from allotted 2nd round seat as per direction by Hon'ble supreme court in WP(C) (267/2017) dated 09/05/2017.However if you are allotted a seat in Second Round in AIQ/ Deemed you can exit with Forfeiture of security amount. Exit with forfeiture means if a candidate allotted a seat in 2nd round of counselling and does not want to join the allotted seat he can still exit with forfeiture (losing security amount deposited) and once candidate joined the allotted seat would not be eligible for resigning/surrender of joined seat.

Hope this helps.