Why not send your coins to coinbase, sell btc, buy eth? Simple as that and you can also do it easily in mobile wallet with just few clicks.
Yes,I know how to exchange it on exchanges or through wallets
But since I was looking for instant exchange and do not want the coins stuck in exchanges or for confirmation, I thought of buying here as I had btc already deposited with a escrow
Anyway,I have already got the ETH and closing this thread