HP Gas cylinder booking at paytm with Rs. 10 cashback. now we can book our HP gas cylinder from paytm and no need to worry about the changes for the delivery person. easy to use open the app and select you HP gas distributor followed by entering your consumer no. and pay the amount. apply the coupon code HP10. and make payment. personally verified in delhi, gas was delivered with in 3 days of booking, delivery time might vary from state to state.