https://paytm.com/offer/best-bus-offer/
Promocode: BUS80

Terms & Conditions:
Get 20% Cashback on all bus ticket order.
Maximum cashback is Rs 80.
Minimum order value should be greater than or equal to Rs. 200..
Promo code can only be used once in a day.
Promo code can be used 5 times by user in total.
Cashback will be credited within 24 hours of the transaction into the user’s Paytm Account.
The user needs to have verified mobile number on Paytm to get cash back.
Validity till 19th of March 2016.