The Mughal period was a period of unremarkable provincial administration from Delhi. The most remarkable period of these times was under Sher Shah or Sher Shah Suri. Sher Shah Suri hailed from Sasaram, about 160 km south-west of Patna and revived Patna in the middle of the 16th century. On his return from one of the expeditions, while standing by the Ganges, he visualised a fort and a town. Sher Shah's fort in Patna does not survive, but the mosque built by Sher Shah in 1545 survives. It is built in Afghan architectural style. There are numerous tombs inside.