How you were terminated? Were the orders verbal or was a mail was sent to you?
We need to know the reasons for the withholding of the salary. Whatever disciplinary grounds may be, your salary cannot be withheld. You may put up application for the disbursement of salary to the MD of your company. However, before writing application, answer the above queries.
You may approach the Labour Officer also. However, to know whether you are eligible to do that confirm your designation and how many persons reported to you.
Your Termination is illegal and you need to fight for the justice.
You move to Labour Office of the area where your office establishment is existing for illegal termination and un-paid wages.
You can even file a civil case against unpaid wages in civil court.