Check petrol, diesel prices in your city, here is how to do it In India, petrol and diesel prices are revised daily in the morning at 6 AM. Anyone can easily check the rate of petrol and diesel by sending an SMS to 9224992249. All you need to is type RSP Petrol Pump Dealer Code and send it to 9224992249. You can find the RSP code of your locality by visiting the official site of the petrol pump near you. But why are fuel prices constantly on the rise? Fuel prices differ from state to state depending on the incidence of local taxes such as VAT and freight charges. Rajasthan levies the highest value-added tax (VAT) on petrol in the country, followed by Madhya Pradesh and Maharashtra.