Citibank — Rejected credit card application even though all criterias are fulfilled

Address:	600097
Website:	www.online.citi.com

I applied for an indian oil citibank credit card in citibank ref. No. [protected]. They rejected my application without any reason. When i checked with them, they told my cibil is not good. I checked my cibil and it was fine. I again contacted them and they are rejecting the application. This causes frustation to me. I want to know the reason why they have rejected my application.