unauthorised transaction

Unauthorised transactions on my HDFC debit card and payment will be debited to my account
I am NEERUDI SUDHERSHANAM, holding HDFC debit card received message saying that alert You’ve spent rs.6200.00 via debit card xx3000 at GOOGLE *V Kochevadov on 2019-09-21:08:12:12.I am not doing the transaction and also I did not even receive an OTP for the transaction. I realised when I received a message.
It is hard earned money and I cannot afford to pay to Bank with no fault of mine. Requested you to look into the matter immediately. Awaiting for response at the earliest.
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