Business Tata Sons chairman Chandrasekharan on Mistry NCLAT order: Will pursue legal recourse Updated : December 19, 2019 02:05 PM IST The NCLAT held that the group's chairman emeritus Ratan Tata's actions against Mistry were oppressive and the appoint of the new chairman illegal. Setting aside a lower court order, the NCLAT also quashed the conversion of Tata Sons into a private company from a public firm. Mistry was the sixth chairman of Tata Sons and had a tenure up to March 2017. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.