Question

Why mumbai is the leading cotton textile centre in India?

Answer 1

Maharashtra excels all other states in the development of cotton textile industry. It produces 39.38 per cent mill cloth and 10.79 per cent yarn of India. ... Mumbai is the largest centre in India having 63 mills out of Maharashtra's total of 122 mills. Mumbai is rightly called the Cottonopolis of India.
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Answer 2

Because
1. It is a port City so transportation is easy
2. The state has cheap labor.
3. The weather is good for growing of cotton.
4. The weather is ideal for weaving and spinning
5. Films are made there so they need clothing so because of this cotton textiles are leading in Mumbai