Sending Gift card / Coupons to india ?

Is there any online website where i could send gift cards to india .As my friend's b'day is coming up n i have her email address alone (she has recently changed her residence )so i don't know her address .But i would like to send her a surprise gift card online so that she could claim it via her email address .She stays at chennai .Please suggest any trustworthy sites where i can buy gift cards or coupons,thanks in advance .