By Mohammed Kudrati Credit and debit card users will have to ‘tokenise’ their details online to conduct transactions by September 30, as per guidelines by The Reserve Bank of India (RBI). Post this deadline, online portals and merchants will be required to purge ‘card-on-file’ (CoF) data and card users will either have to tokenise their card details or enter it manually every time they wish to transact. As per these guidelines, merchants (like Swiggy, Zomato, Uber, Flipkart and Amazon) can no longer store CoF data, which they have been storing till now to facilitate card transactions. Only car…