Haji Shamsuddin Ilyas (AD 1342-57) was appointed by Ghiyasuddin Tughlaq as the governor of Bihar, who created the division of Tirhut in AD 1347, and

Haji Shamsuddin Ilyas (AD 1342-57) was appointed by Ghiyasuddin Tughlaq as the governor of Bihar, who created the division of Tirhut in AD 1347, and