Avail Flat Rs.25 Cashback on First Landline Bill Payment of Rs.500 or more. Maximum Cashback is Rs.25. Minimum bill payments should be Rs.500. Promocode is valid only for new landline users. Promocode can be used only once per user/number. Promocode is valid only on Landline Bill Payments. Cashback will be credited within 24 hours of a successful transaction.