Mumbai: Tata Sons chairman N Chandrasekaran briefed the board of Tata Trusts about the conglomerate’s performance and plans in a closed-door meeting at Bombay House on Tuesday, in what long-time group watchers said was a notable departure from precedent.Present at the meeting were Noel Tata, Mehli Mistry, Venu Srinivasan, Pramit Jhaveri, Darius Khambata, Vijay Singh and Jehangir C Jehangir. The move to update the entire board of trustees had been initiated by the chairman, people aware of the matter said.According to group insiders, a Tata Sons chairman never directly briefed the Trusts board during the tenure of late group patriarch Ratan Tata — it’s a first. Traditionally, trust nominees on board of Tata Sons apprise the board of Tata Trusts on key developments and areas.The Trusts