Cyrus Mistry on Sunday escalated his war of words with Tatas by accusing Vijay Singh, a nominee director on the Tata Sons board, of cooking up theories to defend his role in the conspiracy hatched by Ratan Tata to sack him as the Chairman.Mistry also claimed that being a part of the Nominations and Remuneration Committee (NRC) of Tata Sons, Singh had on June 28, 2016 given a glowing review of Mistry's performance as the chairman of the Tata Group. On charges that Mistry was doing nothing at Tata Motors, the ousted chairman claimed that Singh had stated that Tata Motors has come up with some of their best models in recent years under his watch.