I don’t fully understand how this works, but following excerpt from a report in inbnlive.com may shed light to some.

The proposed takeover of Cairn Energy’s India business could see NRI billionaire Anil Agarwal emerging as the richest promoter of a corporate house ahead of Mukesh Ambani, who has ruled the list for long.

After the acquisition of Cairn India and a proposed IPO of group firm Sterlite Energy, Anil Agarwal, as head of the promoter family, would command an estimated networth of close to Rs 1,67,000 crore, ahead of Mukesh Ambani at Rs 1,45,275 crore, a comparison of promoter family holding valuations for leading groups reveals.

… At the same time, the acquisition would give the Agarwal family double the size of Anil Ambani group (whose promoter wealth currently stands at less than Rs 80,000 crore). The $ 9.6 billion takeover of Cairn India has already pushed Vedanta group head Anil Agarwal to the second position after Mukesh Ambani in terms of family net worth, measured in terms of value of shares held as promoters in five listed group companies.

Add to this, the value of shares he holds in aluminium major Balco and IPO-bound group firm Sterlite Energy, the promoter family wealth of Anil Agarwal group could rise to nearly Rs 1,66,938 crore.

In comparison, the promoter family wealth of Mukesh Ambani group currently stands at Rs 1,45,276 crore, based on the value of promoter holdings in two listed group firms Reliance Industries and Reliance Industrial Infrastructure. Without Sterlite Energy, which has proposed an initial public offer of Rs 5,100 crore, and Balco, where Vedanta group has 51 per cent stake, the total promoter family networth of the Vedanta group currently stands at Rs 1,38,465 crore. This includes the value of promoter shares in Sterlite, Hindustan Zinc, Sesa Goa (all listed in India) and that in UK-listed Vedanta Resources, as also the worth of proposed 60 per cent stake in Cairn India proposed to be purchased from Scotland-based Cairn Energy.

The total networth would rise by over Rs 28,000 crore if Balco is taken at par with its peer group company Nalco, which has a market cap of Rs 25,830 crore, and the group offloads 25 per cent stake in Sterlite Energy to raise Rs 5,100 crore.

Note that Rs 1,66,938 crore at today’s exchange rate of 1 USD = Rs 46.6525 comes to $35.78 Billion. That would put him at number 4 in the world. If a person of such net worth wants to establish a $3 billion university in Odisha and we turn him away that will the height of stupidity in our part.