Jugnoo: Double your free rides! Give 3 rides Get 6 free
http://chalojugnoose.tumblr.com/post/146060155539/double-your-free-rides

Get 3 bonus free rides on every 3 successful referrals. E.g. On 3 successful referrals you’ll get 3+3 = 6 free rides. On 6 successful referrals you’ll get 6+6 = 12 free rides. On 9 successful referrals you’ll get 9+9 = 18 free rides and so on.
T&C:

You are required to have 3 minimum successful referrals in the given time frame (18th - 30th June, 2016) to get bonus rides.
Your referrals should have taken their first free ride before 11:59:59 pm as of 30th June, 2016.
Bonus rides will be credited in your account on 1st July, 2016.