Okay let me explain it to you guys so it's 100% clear to everyone this is a scam coin.
American Bank A buys XRP from exchange then sends to Indian Bank B who then sells XRP back into exchange for Rupee. That means there has to be people in the exchange selling XRP for USD as well as people buying XRP for Rupee.... Ripple said they want it to be stable as well which is necessary... But why will people want an investment that stays the same? You think people will keep there money in for free just so Ripple can use it to run their XRP exchange? It's so flawed... Noone will want to hold onto XRP. What if there isn't a buy or sell available? Banks will still need Nostro accounts incase the sell and buy isn't there. Ripples' model for savings is so biased and flawed. Banks are going to save a miniscule amount with Ripple + XRP vs just Ripple it's a complete scam coin. Banks would rather just use Ripple and trade real currency vs the headache of buying and selling on the exchange to purchase and sell XRP. It's not worth the LITTLE amount of savings XRP will add along with the headache.
What you wrote isn't how Ripple working.
If you want to send 10$ worth Rupee from the US to India you are not going to send XRP. You buy XRP from Ripple, then for your XRP you buy the 10$ worth of Rupee IOUs from a gateway what offering it, and that's what you send to the other bank in India (+ you pay the transaction fees in XRP to Ripple or to the gateway). (Another way if you buy widely accepted USD IOUs and exchange that to Rupee IOUs) ...or maybe you buy Rupee IOUs from the gateway directly for your USD. Anyway at the end of the process the Indian bank will cash out the Rupee IOUs in real Rupees at a gateway.
Edit: More info here
https://wiki.ripple.com/Payments