Users from Chennai, who are planning to buy a new data card from BSNL, can now enjoy some extra freebies. On purchase of every 3G Data card from BSNL and opting for a prepaid plan, BSNL will be providing you with a free 3G SIM card which will be bundled with FRC 51. Users will only have to pay Rs. 51 towards the FRC and not for the SIM. With this they will also enjoy 1GB of free 3G data usage against the previous 200MB. The data usage will carry a validity of 30 days.Free SIM, free 1GB 3G data usage, sounds like a great deal.