What happened between Ratan Tata and Cyrus Mistry that led to a fallout?

Ratan Tata began doubting Cyrus Mistry’s suitability as Tata Sons’ chairman within a year of his apprenticeship. The doubts were fueled by Mistry’s sharp interventions and potential ethos conflicts. Mistry’s eventual removal in 2016 was a difficult decision for Tata, with experts noting it caused significant personal anguish for him.