bengaluru/mumbai, Oct. 29 -- Tata Trusts chairman Noel Tata and vice-chairmen Venu Srinivasan and Vijay Singh have not approved the reappointment of Ratan Tata long-time confidant, Mehli Mistry, as a permanent trustee-setting the stage for a 2016-like battle between the Tatas and ousted Tata Sons chief Cyrus Mistry. Mistry, a first cousin of Cyrus Mistry, is considering options including challenging the ouster in court, people close to him said, potentially plunging the philanthropic entities that control Tata Sons into uncertainty. On Tuesday, Noel Tata, TVS Motor Co. chair emeritus Srinivasan, and former defence secretary Singh voted against Mistry's candidature for trustee for life, according to an executive privy to the development. The...