Mumbai, Sept. 17 -- The opposition of Tata Trusts to N Chandrasekaran's reappointment as Executive Chairman of Tata Sons could lead to months of uncertainty over his tenure as well as the proposed listing of Tata Sons, according to Shriram Subramanian, Founder and Managing Director of InGovern Research Services.

His comments came after the Tata Sons board on Thursday approved Chandrasekaran's reappointment as Executive Chairman for another five-year term after he agreed to reconsider his earlier decision not to seek another term. However, soon after this decision, Tata Trusts said in an official statement that it maintains the position that the resolution to reappoint Chandrasekaran is illegal.

Subramanian said the Tata Sons board's dec...