http://blog.olacabs.com/ride-for-rs-49-and-earn-rs-100/
How to redeem the offer:
1. You will receive your unique Snapdeal promo code within 72 hours of your completed TaxiForSure ride.
2. Please download the Snapdeal app (in case, you don’t already have it) and login using your email address.
3. Send SMS SD on Shortcode 53636 for all operators. and 8512053636 for BSNL and MTNL . Standard SMS charges apply. Please note: The email id needs to be the same email id used to login on Snapdeal app
4. Snapdeal will credit Rs.100 SD cash to all existing & new customers within 24 hours of their SMS

Terms and Conditions:
– Maximum of one coupon per user.
– Offer valid only on completed TaxiForSure rides booked on the Ola app.
– Cabs subject to availability.
– Olacabs/TaxiForSure/Snapdeal reserve the right to change/modify/withdraw the offer at its own discretion.