Chittagong, the second largest city and main port of Bangladesh, was home to a thriving trading post of the Portuguese Empire in the East in the 16th and 17th centuries. The Portuguese first arrived in Chittagong around 1528 and left in 1666 after the Mughal conquest. It was the first European colonial enclave in the historic region of Bengal.
A painting indicating the battle between the Arakanese and the Mughals in Karnaphuli River in 1666 in which, the Mughal received help from the Portuguese.
The State of India, also referred as the Portuguese State of India or simply Portuguese India, was a state of the Portuguese Empire founded six years after the discovery of a sea route to the Indian subcontinent by Vasco da Gama, a subject of the Kingdom of Portugal. The capital of Portuguese India served as the governing centre of a string of military forts and trading posts scattered all over the Indian Ocean.
Portuguese Goa in 1600
Portuguese territory of Bassein fortress in Gujarat
In the 16th and 17th centuries, the Portuguese Empire in the East, with its capital in Goa, was then often styled in Europe as the "Rome of the East"; it included possessions (subjected tracts of land with a certain degree of autonomy) in South Asia, Southeast Asia and East Africa.
Portuguese fortress of Bassein, centre of the northern province.