Either you do it yourself(it is simple if you have debit or credit card).
If you can't then work out with someone(you will pay the person having paypal account and he will buy book with yours shipping address).
Please note that paypal has conversion charges approx. 46.65 per rupee.
If possible give link of book website.
Go to money2paypal.in. I used them once before I got my CC and they are quite fast. You need to transfer money to their bank account and as soon as they receive money, within 12 hours they will send $$ to your paypal account. You need to visit their site to find out the charges levied for various amounts of transaction.