You have posted that:
"two days back they told me the said service request is closed due to incomplete document submission, on presistent enquiry over 3-4 calls got to know that they wanted my credit card xerox and march mobile phone bill, which I have submitted to their customer.care email id and will be submiting to bank physically tomorrow aganist a nre service request.The disputed transaction is a physical transaction done in reliance and ezone store, its not a online transaction."
So, it is only two days back and that also when you called M/s ICICI bank (M/s ICICI bank did not call you from the date you lodged complaint) that the banker told you that complaint is closed. And the reason was told to you when you called them repeatedly (3-4 times).
This is apparently a trick to keep thier slate clean and post a decent report on complaints at their website, and to BO.
Don't accept a new complaint number and submit a letter (narration) to BM in nearest branch under proper acknowledgment.
If it was not online transaction then without CC how could anyone swipe it physically?
Was your card lost?
Was your card in our possesion at the time of transaction in Reliance and Ozone?
Has the bank supplied you/police the signed charge slip and CCTV footage from vendor?
You are apparently unable to handle the matter with M/s ICICI bank on your own.
Better entrust to an able counsel specializing in banking/CC/consumer matters and let your counsel draft all of your representations.