Why were chartered companies important to british imperialism in india?

The British East India Company almost had a monopoly on the trade with India. They taxed imports and exports going into and out of India, gaining huge amounts of money. They also restricted certain industries so they didn't rival the British. India was yet another piece of land to add to British control, adding to British power in general.

they defeated the mughal empire and took control of india’s government

Explanation:

immigrants from northern and western europe continued coming as they had for three centuries, but in decreasing numbers