Topic summary
Sultanate of Bengal

Extracted from the Wikipedia article Bengal Sultanate.
Early Bengal Sultanate (14th and 15th centuries)
Ilyas Shah established his capital in Pandua. He unified the deltas of the Ganges, Brahmaputra, and Meghna Rivers into the Sultanate of Bengal. Ilyas Shah waged wars and raids against several city-states and kingdoms in the eastern subcontinent. He conquered eastern Bengal and northern Bihar. He led the first Muslim army into Nepal, raided the Kathmandu Valley, and returned to Bengal with treasures. He controlled an area stretching from Assam in the east to Varanasi in the west. In 1353, Ilyas Shah was defeated by Delhi Sultan Firuz Shah Tughluq in the Siege of Ekdala Fort during the Ekdala Wars. Bengal agreed to pay a tribute to the Delhi Sultan. Despite losing control of many conquered areas, Ilyas Shah remained in firm control of Bengal.