Cause of action is the starting point for limitation period. When you have noticed, and the ongoing correspondence and refusal of the Bank to credit finally makes the difference. Please kindly go through NCDRC decision against VIjaya Bank for more information.
It all depends on the amount, whether it is proper to proceed further or not. DCF has a right to relax the limitation period, if you can convince them with genuine reasons. If you treat that it is hopelessly barred by time, forget about this.