Thanks for the welcome and responses guys! Unfortunately, I have booked through a third party website agent (
www.ticketstoindia.co.uk) who tell me that its a non refundable fare !

Anyone know any work around through this cause now that I have proof from all of you, Im really dreading the flight (I have a huge build and a 9hr flight is not exactly something Im willing to fly sitting cramped, leave alone the inflight entertainment! :P )