That's true.... but its its not always accurate. I've had withdrawals from my account and had the SMS delivered to me after a 10 hour delay... its completely dependent on the server load. I've also had occasions where 4-5 transactions will deliver to me in a string after 4-5 hours.
are you using state bank group bank ? other icici , hdfc , axis are working fast for sms
I've used most of them.... all are pretty instant. I'm talking about exceptions. They do come about randomly if there is some issue from their side. Plus if a merchant wants to verify something, the bank is the worst place to get that info, especially when there is no complaint from the customer's end. Hence the time makes sense... the customer needs the time to register a complaint etc and the bank needs to follow through, blocking all transactions etc.