Natarajan Chandrasekaran and Noel Tata reportedly briefed the government separately regarding internal boardroom rifts before the chairman's shock resignation.
The exit has placed the Tata Group's major strategic bets, including Air India's turnaround and investments in chip manufacturing, under intense scrutiny.
Noel Tata has emerged as a central power broker, with investors closely watching how the group manages its leadership transition and future listing decisions.