Resigned from directorship of a company 5 years ago

Approach the ROC under whose Jurisdiction your Company Falls. Narrate him the whole issue, Show him the Acknowledged Documents of Submission of your Resignation & If you Possibly can get hold of the Copy of Agenda & Minutes of the Meeting where in Your Resignation was Taken up & Approved than that fact must also have been Minuted in the Meeting. & your Problem will get Solved easily at Registrar Office with his Interference. 

Thanks a lot for the advice. I will follow up ASAP.

Apparently, the RoC has not been of much help. I feel like trapped in a cross-firing, because neither I am in a position to affect the dealings of the first company, nor am I getting a positive response from the RoC. What are the options in such a case ?