Sher Shah Suri

https://en.wikipedia.org/wiki/Sher_Shah_Suri

Sher Shah Suri (1486 – 22 May 1545), born Farīd Khān, was the founder of the Suri Empire in the northern part of the Indian subcontinent, with its capital in Sasaram in modern-day Bihar. He introduced the currency of rupee.[2] An ethnic Pashtun, Sher Shah took control of the Mughal Empire in 1538. After his accidental death in 1545, his son Islam Shah became his successor.[3][4][5][6][7][8] He first served as a private before rising to become a commander in the Mughal army under Babur and then the governor of Bihar. In 1537, when Babur's son Humayun was elsewhere on an expedition, Sher Shah overran the state of Bengal and established the Suri dynasty.