Indusind Bank — credit card application indusind

Address:

Mumbai City, Maharashtra, 400709

I was contacted by 3rd Party of Indusind bank credit card department for Credit Card. Their person had collected all my attested documents on 05th Jun 2018.
My application number slip is AP1258174. I have contacted the bank and the 3rd Party numerous time till date but no response. The 3rd Party vendor - Sameer - Mobile [protected] told me that my application is forwarded to the bank. Today, when I contacted the bank, they told me that the application number above belongs to someone else. Indusind Ref. no[protected].
I have checked with the bank providing all the information but it seems there is no match with my details. I surely feel this is a case of fraud. Maybe from the 3rd party. I need the bank to take strict action on the same immediately.