Mahesh Das, popularly known by his title Raja Birbal, was an Indian minister and commander of the Mughal Empire. He is mostly known in the Indian subcontinent for the folk tales which focus on his wit. He was appointed by Akbar as a 1556–1562 and was one of his most important courtiers, part of a group called the navaratnas. In February 1586, he led an army to crush an unrest in the north-west Indian subcontinent where he was killed along with many troops in an ambush by the rebel tribe. He was the only Hindu to adopt Din-i Ilahi, the religion founded by Akbar.

Rewa State, also known as Rewah, was a princely state of India, surrounding its eponymous capital, the town of Rewa.