Noel Tata has written to the Tata Sons board raising concerns over the conduct of the Sept. 17 board meeting, according to sources. In an email sent on Sept. 30, he questioned the process followed during the meeting, noting that Chairman N Chandrasekaran's reappointment was not listed on the agenda and was instead discussed under the "debrief by NRC" item. Tata also sought details of the legal opinions obtained after the meeting and requested access to the minutes and video recording of the board proceedings.