Shah Jahan : Relations with Portuguese
The Portuguese had established a factory at Hugli in Bengal. We have already read that the Portuguese had a very constringe religious policy. It was learnt that the Portuguese often lifted the orphaned children and converted them to Christianity. This was something objectionable under the rule of a Mughal, who was a devout Muslim. During the reign of Jahangir the Portuguese lifted two slave girls that belong to Mumtaj Mahal and they were not released even after it was known to the Portuguese.
In 1631, Qasim Khan was appointed as Governor of Bengal and was given authority to teach a lesson to the Portuguese.
The Portuguese were attacked, massacred and Hugli was in siege for 3 months. The Portuguese surrendered only after a huge loss of ten thousand lives. Four thousand were made prisoners, who were given an option to either convert to Islam or face lifelong imprisonment. Thus Shah Jahan gave the Portuguese a death blow in Bengal.