The Tata Group, which has about 100 companies in its fold with a market capitalisation of about $134 billion as on 31 March, 2015, plans to increase it to $350 billion by 2025.

Its market capitalisation as on 3 December, 2015, was $111.56 billion. The Tata Group employs about 6 lakh people and has about 3.9 million investors, according to its website.

The Tata Group, which has a presence across segments, ranging from hotels, reality, financial services to information technology, automobiles and consumer durables, has 29 listed entities.

"At the turn of the century, we had a relatively small market cap of just under $8 billion. We have added a 100 billion dollars plus to that in the last 15 years. I am quite confident that this will continue to grow," Mukund Rajan, member of group executive council and brand custodian at Tata Sons, was quoted as saying by PTI.

"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," Rajan added.

The group will also leverage its experience of acquiring global brands such as Tetley, JLR and Corus.

"...we have the courage to make such acquisitions and when opportunities present themselves, we will appropriately deploy our learnings from the past in any future acquisitions," Rajan said.

The Tata Group's turnover in 2014-15 was $108.78 billion, including international revenues of $73.41 billion.

The news did not evoke much of a response on the markets, with most of the stocks up or down marginally on the Bombay Stock Exchange on Monday.

Some of the group's prominent companies include Tata Consultancy Services (TCS), Tata Steel, Tata Motors, Tata Global Beverages, Tata Coffee, Tata AIG Life Insurance, Tata Advanced Systems, Tata Capital, Tata Communications, Indian Hotel Company and CMC.