Following Debit Card Transaction has been made with out my knowledge . I have not authorized this transaction. I got SMS from my bank that a transaction has been processed without the additional factor of authentication prescribed by RBI..
They have saved my debit card details from my previous transaction to make this purchase.

ONLINE ORDER - PAYMENT DETAILS (PAYMENT RECEIPT)
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Website: http://www.bitdefender.com
Order no.: 22619697
Payment method: Visa/MasterCard/Eurocard
Date/time: December 11, 2013
Order total: 3,053.83 INR

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Mail from My Bank -
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Your debit card 5497XXXXXXXX8901 has been used to make a purchase of Rs. 3053.83 at avangate bitdefender.c Am on 11-DEC-13. This transaction has been processed without the additional factor of authentication prescribed by RBI..

In the event that this or any other such purchase has not been made by you, please contact

24x7 helpline immediately.

Thanks,
Sujan