Which port of India was used by Britishers to export Jute from India during colonial times?

Kolkata

The correct answer is Option 3: Kolkata

NCERT: Cities had a key role in the economic system of empires. Coastal cities such as Mumbai, Kolkata and Chennai were favoured. From here primary commodities could be easily exported and manufactured goods could be cheaply imported. Colonial cities were the prime link between the economic centre or core in Britain and periphery or margins in colonised India. Cities in this sense were the concrete expression of global capitalism. In British India for example Bombay was planned and re-developed so that by 1900 over three-quarters of India’s raw cotton were shipped through the city. Calcutta exported jute to Dundee while Madras sent coffee, sugar, indigo dyes and cotton to Britain.