Sher Shah Suri

Sher Shah Suri defeated the Mughal emperor Humayun at the Battle of Chausa in Bihar. This victory forced Humayun to flee to Persia and allowed Sher Shah to establish the Sur Empire in northern India.

Sher Shah Suri decisively defeated Humayun at the Battle of Kannauj (also known as Bilgram). This victory consolidated Sher Shah's control over the Delhi Sultanate and ended Mughal rule in India for 15 years.

Sher Shah Suri introduced a standardized silver coin called the 'rupiya', which became the basis for the modern Indian rupee. This reform stabilized the economy and facilitated trade across his empire.

Sher Shah Suri implemented a systematic land revenue system based on measurement of land and classification of soil types. This reform increased state revenue and reduced corruption, later adopted by the Mughals under Akbar.

Sher Shah Suri built the Grand Trunk Road from Sonargaon (Bangladesh) to Peshawar (Pakistan), improving trade and communication. The road included rest houses and wells at regular intervals, facilitating travel and commerce.