Generally, while selling a car it’s a good practice to cancel the insurance policy and to transfer the No Claim Bonus (NCB) – usually a discount of 20-50% on the Own Damage Premium of the car to another car that a seller may be purchasing. This is since the NCB belongs to the car owner and not to the car, therefore the NCB is not transferable. For cancelling your car insurance policy, you may request your Insurance company in writing with a request to cancel the policy along with a filled copy of Form 29 and Form 30 for making an application and notifying the Regional Transport Authority (RTO) with respect to the change in the ownership of the car. Further, the insurance company may also ask you for the submission of the original policy certificate and proof of delivery of the vehicle to the new owner. The NCB certificate issued by the insurance company is valid for 3 years and you can utilize it for insuring your new car.