AgustaWestland had initiated the arbitration proceedings on October 4 and later nominated former Supreme Court judge B N Srikrishna for arbitration in the case.
A team of its officials had also met Defence Ministry officials to present its case in the chopper scam and denied any wrongdoing on its behalf.
The Defence Ministry has taken a stand against arbitration clause saying it does not apply to the pre-contract integrity pact which is signed by the Ministry with its vendors.
Antony has already asserted that the firm had violated contractual obligations, for which the government had initiated action against it.
