Update: Airline GoAir sent the following message to its customers (I received one): "As per the new guideline of Reserve Bank of India, all GoAir customers making Credit/Debit card payments through our call center w.e.f. 01st January 2011 will need to have an OTP (One Time Password) which is mandatory. We request you to contact your card issuing bank for further details on OTP to ensure hassle free card transactions on GoAir call center." Jan 3rd 2011: The Reserve Bank of India has extended the deadline for use of an additional security measure for authentication for all credit and debit card payment transactions made on IVR (interactive voice response) systems, from 1st January 2011 to 31st January 2011. According to RBI, this is keeping in view requests made by banks and other stake holders to test the new authentication system in a live scenario, parallel to the existing one. Thus, until the end of January, IVR based mobile transactions will be allowed to through even if the additional authentication factor fails. Read the original RBI circular on the additional factor of authentication issued in April 2010. Although, after RBI guidelines in 2009, online transactions required an additional alpha-numeric 3D Secure password after entering the card details, for IVR systems it was not possible to use the same password as it contained alphabetic characters. To overcome this problem, a 6 digit OTP or One Time Password was devised by banks. Also, since the IVR system cannot redirect to the issuing bank's IVR as…
