After gaining independence, India faced significant defense challenges and sought public contributions during times of war. The myth about Mir Osman Ali Khan donating 5000 kg of gold was debunked ... Here's all you need to know about Mir Osman Ali Khan, the seventh Nizam of Hyderabad. Mir Osman Ali Khan, Asaf Jah VII (1886-1967), reigned as the final Nizam of Hyderabad, the largest princely state in British India. Crowned in 1911 at 25, his rule extended until 1948 when India annexed Hyderabad. Meet Mir Osman Ali Khan, India's First Billionaire, Was Richer Than Ambani, Adani, Murthy Combined Take a look at Mir Osman Ali Khan's impressive wealth, from his remarkable gem collection, including the Koh-i-Noor, his fleet of Rolls-Royce cars, royal ties with Queen Elizabeth, and more!