erms & Conditions: Use Code: GRAB25 to be eligible for this offer .Promocode is valid only on first transaction of Delhi metro or Mumbai metro. Minimum transaction amount to avail cashback must be Rs. 200 or more. Promocode can be used only once per user per card number.Offer is being made purely on ‘best effort’ basis and is valid for limited period only.Cashback is credited within 24 hours of the transaction into user’s Paytm Wallet. Valid on Web and App both.We reserve the right to end this offer at our discretion without any prior notice. https://paytm.com/offer/grab25/