Tata Trusts has said group veteran NA Soonawala retired as the trustee of Sir Dorabji Tata Trust and Sir Ratan Tata Trust citing his health and advanced age. The 83-year-old served at various positions in Tata Group, including as Tata Sons Vice-Chairman. Ratan Tata's half brother Noel Tata was recently appointed as a trustee to the Sir Ratan Tata Trust.