authority in Bengal was relatively weak. It was left to local governors to expand territory and bring new areas under Muslim rule, such as through the Conquest of Sylhet in 1303.

In 1338, new rebellions sprung up in Bengal's three main towns. Governors in Lakhnauti, Satgaon and Sonargaon declared independence from Delhi. This allowed the ruler of Sonargaon, Fakhruddin Mubarak Shah,