first of all the cellphone cant be delivered to US as far as i know
if he is sending off the record i mean to say not from the amazon then he may send the cellphone as a gift from US or watever and the duty is just 500 rupees but keep these things in your mind
i have experience for buying 2 watches and 1 psp from amazon psp was offficially from amazon.com and the 2 watches was from the individual seller
soooooooo see the rating first
if he is sending you the cellphone he cant charge you from amazon.com