The same thing happened to me a few days back...no cibil enquiry and no application was generated and rejected just after filling details...
And these dumb marketing teams sending me mail and messages to apply for their credit card daily....like 2x 2x 2x wth??
I mailed their credit card team and got response that sorry we can't proceed with your application due to internal assessment and also can't disclose due to confidential in nature.
They are not telling me the exact reason but when I came to know from a friend in my bank he told me that this district or Pincode is blacklisted and in fact we are also not allowed to issue credit card through bank.