1) Firstly goto Paytm Metro Card Recharge Page 2) Click on Top Left side “Menu”. 3) Login/Sign up your Account on Paytm. 4) Now Initiate a Mumbai Metro Card Recharge. Enter your Card Number and Amount. 5) Apply coupon:- FIRSTRIDE (25 Rs. Cashback on first Metro Card Recharge) MMETRO (10% Cashback for Mumbia Metro Recharge ) DMETRO (4% Cashback for Delhi Metro Recharge) 6) Once your Promo code is Applied successfully then Proceed to Pay. 7) Now Make the Payment using Debit/Credit card or other Payment mode, You will get the Cashback in your Paytm wallet within 24 hours.