The worst nightmare for any seller would be for the vehicle to end up in the hands of unscrupulous elements and be used for criminal activity. Although such accusations can be refuted later, the pain and torment they cause at first is terrible. In order to avoid such undesirable incidents in the future, it is advisable to have an affidavit made for the sale of vehicles on behalf of the buyer and keep it in the possession of the seller. 2- That I have received the complete and definitive idea of sale of the aforementioned vehicle from the above buyer. The vehicle sales contract helps to avoid disputes regarding the sale of the vehicle in the future. Important details regarding the vehicle may be included in this Agreement. To be a valid contract, both seller and buyer must sign this contract in due form with witnesses and execute it on a valid stamp document, in accordance with the state of performance of this agreement. Form 30 serves as confirmation of Form 29. After inhibiting the RTO on the sale, it is your responsibility to intimately with the RTO who must carry out the transfer of ownership of the vehicle. Form 30 states that all legal ties and responsibilities you had with your car are now transferred to the purchaser of your car, including the financial`s agreement (if any). As a rule, this must be done within 14 days from the date of sale of the car. You need 2 copies of this form and it can be picked up at the RTO office or you can download Form 30 here and send it to the RTO office with the corresponding fee.