Houston: Savitri Jindal, Asia`s richest woman and the widow of the founder of the steel and power conglomerate, O P Jindal Group, is the richest billionaire mother with a net worth of $12.2 billion.
Savitri, 60, has nine children, which makes her the woman billionaire with the highest number of children in the list of 70 mothers from around the world.
The list compiled by Forbes.com, has 70 women around the globe, who will celebrate Mother`s Day on Sunday, as billionaires.
Savitri, a non-executive chair of the O.P. Jindal Group founded by her husband Om Prakash Jindal in 1952, took over as Group Head after he died in a helicopter crash in 2005.
Savitri is also a Congress MLA from Hisar constituency in Haryana.
During his lifetime, the patriarch had handed down operations to their four sons, Prithviraj, Sajjan, Ratan and Naveen, who today run independent units.
The Jindal Organisation is now a multi-billion dollars business involved in all aspects of steel production, from mining iron ore to manufacturing in 20 factories.
It recently acquired iron ore mines in Chile and Bolivia, as well as rights of oil exploration in Peru.
In London, Jindal lives in Kensington. She is joined by her four sons, all them involved in the business, including Naveen Jindal, an `irrepressible polo enthusiast`.
There are 70 billionaire moms in the world, and only eight of those women earned their own way to vast riches.
The self-made billionaire moms include Meg Whitman and J K Rowling, the author of the Harry Potter series. "For Whitman, motherhood was not a deterrent to her success, but an aid," Forbes said on its website.
Other self-made millionaires on the list include Rosalia Mera, who along with her former husband launched the Spanish clothing firm Zara, Doris Fisher of the clothing giant The Gap and Guiliana Benetton of the Italian firm Benetton.
Elena Baturina of Russia, who made her fortune in construction; Zhang Xin, the CEO the Chinese property development company SOHO China; and Yan Cheung, who runs Nine Dragons, which makes paperboard, are also in the list of self-made women billionaires.
But none of those self-starters are among the world`s 10 richest moms, a group that is dominated by widows and daughters of the very rich.
Christy Walton, the widow of John Walton, son of Wal-Mart founder Sam Walton, tops the list of billionaire moms with $22.5 billion.
She is followed by Liliane Bettencourt, 87, of France, whose father founded the cosmetic giant L`Oreal and Birgit Rausing, the 86-year-old widow of the Swedish creator of packaging giant Tetra Laval.
Savitri Jindal, is next on the list at number 4, immediately after these three mother billionaires. She is also the richest woman in India, and 44th richest woman in the world.