What were Presidency cities? Which were Presidency cities in India? When and how was Bombay made the capital of Bombay Presidency?

Those cities were Presidency cities which were multifunctional. They had major ports, warehouses, houses and offices, army camps as well as educational institutions, museums and libraries.

In India Bombay, Calcutta and Madras were Presidential cities.

Bombay had become the capital of the Bombay Presidency in 1819, after the Maratha defeat in the Anglo-Maratha war.