India could become a major competitor for the USA and EU in the future however manufacturing is still over concentrated in the cities of Kolkata, Mumbai, Chennai and Bangalore.
Over concentrated manufacturing is in part due to poor transport networks in other parts of India.
Government is trying to improve the transport network
Mumbai is the main port and pharmaceutical industries have located here to allow them to export their product.
Also traditional heavy industries such as Iron and steel went into decline in the 1980’s.