Mukesh Ambani
Mukesh Ambani inherited the largest private company in India. What he is actually remembered for is a decision his father would probably not have made: he gave the product away.
The Price He Chose
On 5 September 2016, Reliance Jio began selling mobile data in India at a price of nothing.
Unlimited 4G data, free voice calls, free messaging — at no charge until the end of the year, and at a price afterwards that made India one of the cheapest places on earth to be online.
Fifty million people signed up in 83 days.
An heir to a fortune usually protects it. This was the opposite instinct: spend an enormous inherited balance sheet to take a market by removing the price entirely, and worry about earning from it later. Whether that is admirable or predatory is a question this profile will come back to, because both readings have serious people behind them.
Aden, 1957
He was born on 19 April 1957 in Aden — then a British colony, now part of Yemen — where his father was working as a clerk for a trading firm.
Dhirubhai Ambani returned to India and built Reliance from a yarn-trading business into a textiles and petrochemicals group, in an economy where doing so required navigating a licensing system that decided who was permitted to manufacture what. His mother is Kokilaben Ambani. There were four children: Mukesh, his brother Anil, and sisters Nina and Dipti.
The family lived, in the early years, in a two-room apartment in Bhuleshwar in Mumbai. That detail is repeated often, and it is true, and it is also worth noting that it stopped being true well before Mukesh reached adulthood.
The Degree He Did Not Finish
He studied at St Xavier’s College in Mumbai, then took a degree in chemical engineering at the Institute of Chemical Technology, and went to Stanford for an MBA.
He left in 1980, without finishing, because his father asked him to come back and build a polyester plant.
The engineering training is the part that matters and the part usually skipped. Mukesh Ambani is not a financier who inherited industrial assets. He is a chemical engineer who was handed a construction project at twenty-four and has spent his career in plants — which is why the Reliance he built is so heavily weighted toward things that are difficult to build rather than things that are clever to trade.
Patalganga, and Then Jamnagar
At twenty-four he was put in charge of building the polyester plant at Patalganga.
What followed was larger by an order of magnitude. He directed the creation of the refinery complex at Jamnagar in Gujarat — described as the world’s largest grassroots petroleum refinery, running at 660,000 barrels a day, or 33 million tonnes a year, as of 2010.
“Grassroots” is doing real work in that sentence. It means built from nothing on an empty site, rather than expanded from an existing plant. A refinery of that scale, in a state better known at the time for salt flats, put a private Indian company into the top rank of global energy processing.
2002, and What Followed
Dhirubhai Ambani died in 2002. He left no will.
What followed was one of the most public family disputes in Indian business history, conducted between two brothers over control of a company that touched a substantial share of the national economy. In 2005 their mother Kokilaben brokered a settlement: Mukesh took petrochemicals, refining, and oil and gas; Anil took telecoms, power, entertainment and financial services.
The two halves went in opposite directions. Mukesh’s side grew into the largest company in India. Anil’s group accumulated debt through the 2010s, and several of its businesses ended in insolvency proceedings; by 2020 he told a London court that his net worth was effectively nil.
The temptation is to read that as vindication of one brother’s judgement. The fairer reading is narrower: Mukesh received the assets that make money slowly and reliably, and Anil received the ones that required continuous capital in sectors India then regulated and disrupted heavily. The division was not equal in risk, whatever it looked like on paper in 2005.
5 September 2016
Which brings us back to the free data — and to the fact that Mukesh Ambani re-entered telecoms, the sector his brother had been given.
Jio was not a light bet. It required laying a nationwide 4G network before selling a single subscription, funded from the refining business, at a scale that meant failure would have damaged the whole group.
The strategy was to make data so cheap that usage patterns changed, and then to own the pipe through which the change flowed. It worked at a national scale. India went from being an expensive place to use mobile data to one of the cheapest, and consumption rose accordingly. Video, payments, streaming and government services all became mass products in India on the back of it.
Competitors did not survive it intact. Several operators merged or exited, and the Indian mobile market consolidated to a handful of players. Rivals and some regulators argued that pricing below cost for that long was predatory rather than competitive.
Both things are true at once, and a profile that reports only one of them is selling something. Hundreds of millions of people got online who otherwise would not have. The market they got online in is also markedly less competitive than it was.
Selling a Slice
In 2020 Reliance raised a very large amount of money by selling minority stakes in Jio Platforms.
In April, Facebook paid $5.7 billion for 9.9 per cent. In July, Google paid $4.5 billion for 7.7 per cent, at a valuation of roughly $65 billion.
The sequence is worth noticing. Having spent years spending money to take the market, Reliance then sold pieces of the result to the two American companies with the most to gain from India being online — and used the proceeds to pay down group debt.
Alongside that, Reliance Retail has grown into the country’s largest retailer, extending the same logic from data to shelves.
The Part People Argue About
Mukesh Ambani’s fortune stood at about $91.8 billion in June 2026, twenty-second in the world.
He lives at Antilia, a 27-storey private residence in Mumbai valued at around a billion dollars. His son Anant’s wedding to Radhika Merchant, held over three days in July 2024, was estimated to have cost between $300 and $600 million. In 2024 he bought a Boeing 737 Max 9; in September 2025, a building in Tribeca, New York, for about $20 million.
These facts attract sustained criticism, and the criticism is not unserious. A tower of that kind in a city with the housing conditions Mumbai has is a visible statement about distance, and a wedding costing more than the annual budget of a mid-sized Indian city invites the comparison it receives.
The counter-argument made on his behalf is that the group employs enormous numbers of people, that Jio made connectivity affordable at national scale, and that the family funds hospitals, schools and a cultural centre through the Reliance Foundation.
Both of those are on the record. Readers can weigh them.
The Succession
He married Nita Ambani in 1985. Their children now run pieces of the group: the twins Akash and Isha, born 23 October 1991, and Anant, born 10 April 1995 — broadly telecoms, retail, and energy respectively.
That arrangement is deliberate, and it is the one thing about which the family’s own history has taught it the most. Dhirubhai Ambani died without a will and left two sons to fight over an undivided company in public for three years.
His elder son has spent the last several years dividing the responsibilities among three children while he is still in the chair, in daylight, with the roles announced.
Whether it holds is the open question. It is also the clearest evidence of what he actually learned from 2002 — and it is not a lesson about refineries.
Common Questions
When and where was Mukesh Ambani born?
Who are his family?
Did he finish his MBA?
What is the Jamnagar refinery?
Why did Reliance split between the brothers?
When did Reliance Jio launch?
What is his net worth?
How This Was Written
Where a matter is genuinely contested — whether Jio’s pricing was competitive or predatory, and what the family’s visible wealth signifies — both cases are set out rather than resolved. Figures are as at the date of publication.
Photography is public domain or CC0 and is credited in the site’s image credits. Corrections: commissions@99founder.com.
