In the net worth sweepstakes, Vedanta Group Chairman Anil Agarwal has lost the most during the 15 months of the Narendra Modi government, followed by the Adanis and Reliance Industries (RIL) Chairman Mukesh Ambani.

The Tata Group maintained its status as the numero uno business group of the country during the period, those the promoters' net worth rose by a modest 10.7%.

Those who have gained the most during the period are Siddhartha Lal of Eicher Group, whose net worth rose by 152%, followed by the Ruias of Essar Group and Desh Bandhu Gupta of Lupin, whose net worth increased by 111.4% and 104.5%, respectively. 

Anil Agarwal's net worth plunged by 45% since 26 May last year, from Rs 1.16 lakh crore to Rs 64,000 crore, pushing him to the fifth among the list of top promoters. 

For Gautam Adani, the Adani Group Chairman who is perceived as close to Narendra Modi, the fall has equally sharp, from Rs 76,690 crore last year to Rs 49,000 crore. The decline was mainly led by a plunge in stock prices of the group companies the Adani Enterprises and Adani Power.

RIL's Mukesh Ambani's net worth stood at Rs 1.22 lakh crore, down 24.1% from Rs 1.61 lakh crore when Narendra Modi was sworn in as Prime Minister.

His brother Anil Ambani also witnessed a vast decline in his net worth, from Rs 45,122 crore to Rs 20,000 crore, reports Business Standard.

As for the Tata Group, the increase in net worth was driven largely led by an 18% rise in market capitalisation of the group's IT arm, Tata Consultancy Services (TCS), even though other group firms such as Tata Motors, Tata Steel, Tata Power and Tata Global Beverages posted a decline in their market value.

The statistics reflect a trend wherein the promoters of traditional business houses such as metals, energy, power and infrastructure have seen a fall in their net worth, while of information technology, pharmaceutical and consumer goods companies have witnessed gains.

"It's all about portfolio. Currently, the market is rewarding service sector companies or low-capital intensive manufacturing companies, while punishing heavy manufacturing and high-leveraged ones. This favours some promoters and goes against others," says G Chokkalingam, founder and chief executive of Equinomics Research & Advisory.