I am using Yatra.com website for last six month and its a good one.
specially if used with Barclays Card and one actually earns 10% of basic fare plus yatra points plus credit card point.However the site does not have redemption details or option.
They are saying that they will be giving redemption option soon and details will be announced by month end since last six month.But nothing put up till now !!!But earning without option of redemption is meaningless !