Tata Trusts chairman Noel Tata has challenged N Chandrasekaran's reappointment as Tata Sons chairman, calling the resolution void over procedural concerns. Noel has also sought an unedited. In a letter dated October 26 to Suprakash Mukhopadhyay, Company Secretary of Tata Sons, and copied to all directors, Noel Tata alleged that a contested resolution had been treated as a.