Indians hold 14 of the 50 spots, the most from any jurisdiction.
Besides the Ambanis, the other Indian families in the top ten richest Asian business dynasties include the Premji family, ranked 7th with a net worth of USD 17 billion, and the Mistry family at the 10th place with a net worth of USD 14.9 billion.
Other Indian families in the coveted list include Godrej family at 15th place with a fortune of USD 11.4 billion, ArcelorMittal group's Mittals (19th, USD 10.1 billion), Birlas (22nd, USD 7.8 billion), Bajajs (29th, USD 5.6 billion), Dabur India's Burmans (30th, USD 5.5 billion), Cadila Healthcare's Patels (33rd, USD 4.8 billion), Eicher Group's Lals at (40th, USD 4 billion).
The overall list was topped by Lees of Samsung Group, whose 2014 revenues were equivalent to 22 per cent of South Korea's GDP.
"While few dominate to such an extent, many business dynasties hold wide regional sway with their sprawling, cross-border empires," Forbes said.
Interestingly, nearly half of the richest families in Asia are of Chinese descent, yet none of the inaugural 50 is based in the mainland.
The barrier to entry was USD 2.9 billion and valuations are based on stock prices and exchange rates as on September 25.
