The announcement comes as both automakers look to hit the reset button in India after falling behind more nimble rivals.
The 87th Geneva International Motor Show kicked off this week with exhibit halls full of new models.
The only surprising thing about Mistry's resignation was it wasn't sooner, says Anil Gupta at the University of Maryland.
Ambit Capital's Pramod Gubbi explains why Tata Motors, Trent and SRF are his top stock picks in India.
Having visited Western Europe, British Prime Minister Theresa May is now turning her focus to emerging economies, with India as her first stop.
In a letter, Cyrus Mistry warned that Tata Motors, Tata Steel, a telecom venture and Tata Power were "legacy hotspots".
The change in leadership at Tata suggests conflict over the future strategic direction of the company, says Kotak Securities' Sanjeev Prasad.
Ratan Tata will take over as interim chairman of conglomerate Tata Sons, after the board ousted Cyrus Mistry in a surprise move.
Elon Musk is "the most deceptive CEO I have ever seen," said Stanphyl Capital's Mark Spiegel.
From an IT tycoon to a cement giant, these Indian billionaires all have their parents to thank for their start in business.
Increased freight demand and replacement demand for commercial vehicles are among the numerous factors boosting India's auto market, notes Abdul Majeed of Price Waterhouse & Co Chartered Accountants.
Toyota Motor said on Monday it will recall almost 1.6 million additional U.S. vehicles for Takata air bag inflators that could rupture.
The move could make Jaguar Land Rover a competitor with hourly car rental services like Avis's Zipcar or ride-hailing companies Uber and Lyft.
CNBC's Dominic Chu and Mike Andronico at Tom's Guide discuss how one automaker's stab at car sharing could impact tech firms.
Mohit Arora from J.D. Power and Associates explains why it's a positive that Tata Motors is delaying Tiago's launch in a bid to get the product right.
The rapidly spreading Zika virus has not only become an international public health threat, it has also foxed one India's largest automakers.
Looking for exposure in emerging markets? Play it through the young consumers, who make up the vast majority of the emerging markets world.
There's no shortage of luxury vehicle choices, but increasingly the wealthy are opting for high-end SUVs instead of traditional models.
Equity markets in Shanghai and Japan outperformed the region with marginal gains on Wednesday.
Piyush Jain, Equity Research Analyst at Morningstar Investment Advisor, discusses the impact of Delhi state elections and the government's upcoming budget on Indian markets.