regional/national/international importance of Mumbai
Maharashtra. rural-urban migration
farmers grow produce in rural areas and sell in MUMBAI = TRADE
'commercial capital' of India
HQs of TNC companies = boosts economy
Bollywood is one of largest centres of film production in world
commerce --in world's top 10 centres of commerce in terms of global financial flow. BT + Suzuki + Toyota + Canon have invested in Mumbai
trade -- Mumbai exports pharmaceutical goods, textiles and gems through port to places such as Singapore, NYC, Hong Kong