Submit final representation addressed to good offices of appointing authority,MD,Chairman and demand all pending payouts by DD only and docs by redg. post only so as to reach you say in next 7 days.......
Are you a member of any employee's/trade unions?
YOu can approach: Employee's unions/Trade Unions,Labor Law consultant,Inspector appointed under (name of the state) Shops and Commercial establishments Act/Payment of wages Act, O/O Labor Commissioner....
Similar queries have been discussed in many threads and you can pick up relevant points..........
https://www.lawyersclubindia.com/forum/Relieve-before-notice-period-116215.asp#.VNYs3c-qr5Y
https://www.lawyersclubindia.com/experts/Non-issuance-of-relieving-letter-522061.asp#.VNYs_8-qr5Y