large recycling industry, processing recyclable waste from other parts of the city; the district has an estimated 15,000 single-room factories.
Most of India's major television and satellite networks, as well as its major publishing houses, are headquartered in Mumbai. The centre of the Hindi movie industry, Bollywood, is the largest film producer in India and one of the largest in the world as well as centre of Marathi Film Industry. Along with the rest of India, Mumbai, its commercial capital, has witnessed an economic boom since the liberalisation of 1991, the finance boom in the mid-nineties and the IT, export, services and outsourcing boom in 2000s.
Mumbai has been ranked 48th on the Worldwide Centres of Commerce Index 2008. In April 2008, Mumbai was ranked seventh in the list of "Top Ten Cities for Billionaires" by Forbes magazine, and first in terms of those billionaires' average wealth
