National Highways Authority Of India [NHAI] — Illegal use of Fastag

I sold my old vehicle, and the fasttag I purchased from Paytm is still sticked to the vehicle, and the new owner is using it illegally for paying the toll on toll plazas, and the money is getting deducted from my account, which is wrong, I request you to please close that fasttag with vehicle Registration number: MP28CA3821

Kindly resolve the issue at the earliest.