HDFC Bank — credit card disapproved

Address: Kolkata, West Bengal, 700156

I had applied for a credit card in hdfc bank. Reference number [protected]e1. All documents submitted and received verification call many times. After few days i came to know that disapproved without any reason.

I have sb, current and demat account in the same bank and also currently holding 2 other credit cards.
I was very surprised after hearing the disapproved status and it might hit my credit card rating.
I would like to know the real reason.

Please help.

P de