New Delhi, Sept. 20 -- The resolution to reappoint N Chandrasekaran as Chairman of Tata Sons was not validly passed at the company's September 17 board meeting as the mandatory support of Tata Trusts' nominee directors was not secured, Tata Trusts said on Sunday.

According to Tata Trusts, Tata Sons' Articles of Association (AoA) require the affirmative support of a majority of directors nominated by Tata Trusts, which hold approximately 66 per cent of the company. With two Tata Trusts nominees on the board, both directors would have to support the resolution for the separate condition under the AoA to be met.

One of the two nominees voted against the resolution on September 17, meaning the required affirmative support was not available,...