What led to N. Chandrasekaran’s decision to step down as chairman of Tata Sons? There have also been reports of disagreements between the 63-year-old chairperson and the Tata Trusts, which owns 66% of Tata Sons. No, Mr. Chandrasekaran has not resigned but has decided not to seek a reappointment as chairman of Tata Sons. He will continue in the top post till his tenure ends on February 20, 2027.Who will succeed him as Tata Sons’ chairman? Mr. Chandrasekaran became the chairman of Tata Sons in February 2017 after Cyrus Mistry was sacked in a dramatic development in 2016.