Mukesh Ambani is worth $121 billion, according to the Bloomberg Billionaires Index.
The world's 11th-richest person controls India's Reliance Industries.
The Ambanis live in a 27-story skyscraper in Mumbai thought to have cost $1 billion.
Mukesh Ambani, the richest person in India and 11th-richest person in the world, is kicking off pre-wedding celebrations for his son Anant this weekend.
Mukesh Ambani is worth $121 billion per the Bloomberg Billionaires Index.
He's the owner and chairman of Reliance Industries, a massive conglomerate that includes telecom arm Jio Platforms, which has been thriving due to a "flurry" of investments in recent years, per Fortune.
The Ambani family home in Mumbai is a 27-story skyscraper that cost an estimated $1 billion to build.
Here's a look at the Ambani family's fortune, relationships, friends, and lavish lifestyles.
Katie Warren contributed to an earlier version of this story.
The Ambanis are one of Asia's richest families.
The family patriarch, Mukesh Ambani, has an estimated net worth of $121 billion, making him the 11th-richest person in the world, according to Bloomberg.
The Indian family's massive wealth began with Dhirubhai Ambani, who founded Reliance Industries to manufacture fabrics and textiles.
Nita and Mukesh have three children, with the youngest Anant, 29
Then there are 32-year-old twins Isha and Akash Ambani.
Akash is a board member at Reliance Jio. Both he and his twin sister studied at Ivy League universities in the US, Akash at Brown University ...
Akash is married to his high school sweetheart, Shloka Mehta, the daughter of a well-known diamond merchant. Mehta reportedly studied at Princeton University and the London School of Economics.
The pre-wedding celebrations included a private concert by Beyoncé.
Source: Business Insider
The wedding ceremony was held at the Ambani residence in Mumbai.
Source: Business Insider
An estimated 600 guests attended the extravagant wedding, which some reports said cost about $100 million. A Reliance spokesman said it cost no more than $15 million.
Mukesh Ambani's three children are all involved in the family business, but succession plans remain unclear.
Anant Ambani and Radhika Merchant threw more glitzy pre-wedding parties in June.
The couple and a large group of their guests went on a luxury cruise that stopped over in Cannes, France and Portofino, Italy. They took over a plaza where Italian singer Andrea Bocelli performed, the Hindustan Times reported.
Pop star Katy Perry performed some of her hits, including "Firework," in Cannes. Other video clips shared online show the Backstreet Boys and Pitbull took to the stage as part of the pre-wedding festivities.
The couple's wedding is expected to be held from July 12 to 14.
Last weekend the couple held a "sangeet" ceremony, which is usually a part of a wedding celebration and includes musical performances.
BBC News reported that Justin Bieber flew to Mumbai to perform for guests.