Submit final representation addressed to appointing authority, MD, Chairman with a copy to Head-HR preferably by letter thru Redg. Post and demand to supply FnF wages by bank DD only by Redg. Post only so as to reach you in next 7 days.
If good offices also do not provide relief then you may approach your labor consultant/service lawyer.
Let your lawyer opine finally on the merits and your case, and let your lawyer decide the forum where you should agitate……………………………..thru Unions, Inspector under The Shops and Establishments Act, Inspector under Payment of Wages act, O/o Labor commissioner, Civil court………………………or to treat the unpaid wages as debt on employer…………………………….winding up petition,………………..complaint u/s 406,420 etc………….