Get 5% Cashback on MTNL Prepaid Recharges of Rs 20 and above., T and C : Maximum Cashback is 200. Promocode is valid on MTNL Prepaid recharges. Code can be used upto 5 times per user. A number can be recharged only 5 times using this campaign. Cashback will be credited within 24 hours of the transaction into user’s Paytm Wallet. Valid for all users. Valid on web & app. Valid till End Of April. Valid on Sunday., Use Coupon Code at the time of checkout.