Senior advocate Darius Khambata will not seek reappointment to two core Tata Trusts, citing disagreements over Tata Sons' listing and events at its September 17 board meeting. In a fresh development at Tata Trusts, the largest shareholder in Tata Sons with a 66 per cent stake, senior advocate Darius Khambata has said he would not seek reappointment as a trustee of the two core trusts.