Even as news of Cyrus Mistry's ouster as Tata Sons Chairman came as a shocker to the markets and industry, a look at the recent past reveals how such shake-ups at the 150-year-old group weren't uncommon.
The capital market regulator has found that former Tata Finance Managing Director Dilip Pendse executed "illegal transactions" in stocks of four firms, including Infosys and erstwhile Telco.
Ratan Tata's reign at Tata Sons ends today. Cyrus Mistry will take over as chairman of the conglomerate that makes tea, coffee as well as software, steel, motor cars and everything in between. CNBC-TV18's Menaka Doshi takes a look at the life and times of Ratan Tata.