Very interesting discussion.
If am not mistaken, in another post by same poster I had suggested her to trust the Advocate appointed by her and go head as per him.
I could see in this matter, the management is trying to establish that the poster is not a Workman as defined under ID Act and she is governed by the clause of contract on arbitrator.
Always keep in mind that the management is smarter than individual employee.
If I am in the place of poster I will step down to amicable settlement skillfully attending arbitration.
Is there any scope with poster to establish that she is a Workman as defined in ID Act? If so, she should submit her say in conciliation. However, bear in mind, the conciliation officer has no power to decide on it and he has to refer this dispute to adjudication.