Checked Cleartrip.com flights section and they are offering great discount. Recently they ran a contest of fastest booking performed on their site and got much adulation of making travel simpler. Its a customer delight to come across such interface and getting great discount on top of that.

Here are more details of this offer

- Book any Cleartrip Flights, Hotel or Train this Summer & get 10% Cash Back on Cleartrip.com with your HDFC Bank Debit Card.

You can avail of supercool Summer deals as follows :
International Air Offer - Book any International Flight and get 10% Cash Back on base fare or Rs.600 Cash Back per booking (whichever is less)
Domestic Air Offer - Book any Domestic Flight and get 10% Cash Back on base fare or Rs.250 Cash Back per booking (whichever is less)

Hotels Offer - Book any Hotel (Domestic/International) and get 10% Cash Back on base price or Rs.500 Cash Back per booking (whichever is less)
Trains Offer - Book any Train and get 10% Cash Back or Rs.50 Cash back per booking (whichever is less)

Offer valid on bookings made on www.cleartrip.com from 10/04/10 to 30/06/10 for any date of travel.

To avail of the cash back, enter coupon code HDFCTRIP during step 3 of the booking process before payment.

Validity of the this offer –
– Offer valid on payment made using HDFC Bank Debit Card.
- Your cash back will be credited to your Account within 5 working days
- You can transact twice during offer period to avail the cash back. If you transact more than twice you can still book but will not get any cash back on your third transaction.
- In case you book more than 1 segment/ticket/room night/seat or berth in a single booking, you will still receive cash back on per booking basis only.
- This offer cannot be clubbed with any other cash back offer on cleartrip.com flights
- In case you cancel your booking (in part or full) the entire cash back availed for the said booking will be deducted from the refund amount.
- Offer Valid for online bookings only. Not valid for IVR/ Tele-bookings.

Cleartrip.com other offers here -