Without details of case pending before the consumer forum,parties arraigned as respondents and relief prayed for, pointed answer can not be given as to that case.
Thank God, it is a civil matter only. Even thirty years ago, some borrowers have filed criminal cases against nationalised bank managers, on false charges of criminal intimidation,dacoity,trespass, attempt to murder, carrying lethal weapons, criminal conspiracy etc., when these managers who were generally timid those days, just tried to seize hypothecated goods, on the instructions of superior officers. Criminal law as it stood and stands today, just doesn't protect bona fide actions like these. The managers had to seek bail, attend courts continuously, till disposal after several years. Bank managements hardly lent any support to their own managers.
In your case such a thing has not happened. You must be glad on this and feel relieved rather than getting agitated. Defamation action in this country hardly succeeds and it is a torture for the complainant rather than the accused. So, getting exercised on such 'daring' by the borrower will only increase your blood pressure. It is a trivial repeat trivial matter, which is better to ignore and remain peaceful.
As for the Company, where you worked, they will take adequate steps to protect their interests, which you need not bother about, having left the employment. In consumer cases, it is extremely rare that summons are issued to witnesses and even then evidence is by filing affidavits only. No need to be on the witness box.
So, it appears you have no real problem on hand, and it is futile to be ruminating over the matter.