After the Diwali lull, war of words between Cyrus Mistry and Tatas appeared escalating on Tuesday, with the ousted chairman saying it was 'false and mischievous' to suggest that he acted on his own or without the knowledge of Ratan Tata on the Tata-Docomo matter.
Mistry also asserted that "insinuations that Docomo issue was handled in a manner inconsistent with Tata culture and values are baseless".
A statement issued by his office said the suggestion that Ratan Tata and trustees would not have approved of the manner in which the litigation against Docomo was conducted was contrary to what transpired.
All decisions on Tata-Docomo deal were taken with approval of Tata Sons Board and actions were consistent with every such collective decision, it added.
"Insinuations that the Docomo issue was handled under the watch of Mistry in a manner inconsistent with Tata culture and values are baseless. The suggestion that Ratan Tata and the trustees would not have approved of the manner in which the litigation was conducted is contrary to what transpired," the statement said.
Stating that a number of discussions on the Docomo situation had been held in the Tata Sons board, the statement added: "Mistry had always mentioned that the Tatas should honour all commitments within the law. This stance is based on Tata Sons' board view and was always consistent with the series of board meetings in which the Docomo issue was discussed."
Reiterating that the agreement with Docomo had been executed before Mistry became executive chairman of the Tata Group, the statement said: "All decisions were taken with the unanimous approval of the Tata Sons board. In fact, all decisions were collective decisions and the actions were consistent with every such collective decision."
Tata Group is entangled in a legal tussle with Japanese firm, NTT DoCoMo. DoCoMo had in November 2009 acquired 26.5 per cent stake in Tata Teleservices for about Rs 12,740 crore (at Rs 117 per share) with an understanding that in case it exits the venture within five years, it will be paid a minimum 50 per cent of the acquisition price.
DoCoMo, in April 2014, decided to exit the joint venture that struggled to grow subscribers quickly and sought Rs 58 per share or Rs 7,200 crore from the Tatas.
But the Indian group offered Rs 23.34 a share in line with RBI guidelines that states that an international firm can only exit its investment at a valuation "not exceeding that arrived at on the basis of return on equity".
The Japanese firm then dragged the Tatas to international arbitration where it won a USD 1.17 billion award.
Tata Sons has said they will resist enforcement of the arbitration award in India as also other jurisdictions as it has been barred by Indian law and public policy.