"The current situation in India and other parts of the world owing to the impact of COVID-19 is very worrisome and requires our very best action" a company statement said.
Saurabh Agrawal joins Tata Sons from the Aditya Birla Group, where he was head of strategy.
He will take over as the executive chairman from Feb. 21, Tata Sons said; Chandrasekaran has been heading the Tata group's crown jewel software services firm TCS since 2009
Ratan Tata is likely to step down soon as chairman of the Tata Trusts, which control a 66 per cent stake in the $100 billion Tata conglomerate's holding company
The board has named Ratan Tata as the interim chair of Tata Sons and has constituted a selection committee to choose a new chairman in the next four months