They Process within a business day, means within 2 days as per their operating time 11 am to 8 pm IST. so if you have requested to day most probably you will get within tomorrow
Edit : Few times i got within hours after request.
Their withdrawals never take 2 days . Nor do they take couple of hours releasing the btc when you withdraw it. Its generally few minutes where they will release the coins.
OP - Call them and check rather than mailing them.