ICICI Bank — Rs.100 is getting debited with ref - Irugtp-nca. and response from bank/customer care is disappointing

I opened my ICICI salary account in 2018, ever since Rs.100 is getting debited from my account every month. I am been told that its related to insurance policy when I called customer care about it.
I am trying to close this auto debit any way possible for more than one year by contacting customer care, contacting Relationship manager at the house branch, contacting staff at ICICI prudential branch and calling insurance in-charge at home branch, filing service request (compliant). But I yet to get any responsible answer or proper way to close this auto-debit, instead every time they are pointing to one to others.

Its been almost 6k debited from my account and no one knows how to stop this even anyone from ICICI bank.

This auto-debit opened without my concern and I didn't get any details eg: policy number. Is this part of any scam ?
I am holding all proofs of communication i tried with ICICI bank and my bank statements with 100rs debited details. I can share them privately if asked.