The Tata Group has seen its market capitalisation fall from $134 billion as on 31 March, 2015, to about $110 billion as on 8 December, 2015, even as it eyes $350 billion in market capitalisation by 2025.
The Group has 29 listed companies and based on the market capitalisation at the end of trading on Tuesday, its top four companies - Tata Consultancy Services, Tata Motors, Tata Steel and Titan Company - suffered an erosion of Rs 6,949 crore in market capitalisation, based on the day's closing prices, translating into about $1 billion, at a conversion rate of about Rs 66 to a dollar.
The share price of its biggest listed firm, TCS, was Rs 2,329.50, translating into a market capitalisation of Rs 4,59,011 crore, down from Rs 4,63, 218 crore on 3 December, when the market capitalisation of its 29 listed companies was $111.56 billion.
Other listed entities of the Tata Group include Tata Communications, Tata Global Beverages, Indian Hotels Company (Taj Group), Voltas, Trent, Rallis and Tata Coffee.
Tata Sons and Tata Industries are the two holding companies of Tata Group that operates in 100 countries and had combined revenues of $108.78 billion during 2014-15.
The Tata Group aims to reach $350 billion in market capitalisation by 2025.
"By 2025, if we want to be amongst the 25 most valuable companies in the world, the number we would need to hit would be around $350 billion," Mukund Rajan, member of group executive council and brand custodian at Tata Sons, had said a couple of days ago.
The S&P BSE Sensex closed at 25,310.33 on Tuesday, down 219.78, or 0.86% from its previous close. The top losers wer GAIL (India), Vedanta, Hindalco and Tata Steel.