How a disciplined Persian army dismantled the mighty Mughal Empire
In 1739, the Persian King Nader Shah executed a lightning campaign that changed the course of Indian history. By pitting a highly disciplined, firearm-focused force against a massive but uncoordinated Mughal army, he achieved a victory so decisive it signaled the beginning of the end for an imperial giant.
The campaign began with Nader Shah’s consolidation of power in Persia. After his 1729 victory at Damghan, he officially became Shah in 1736 following the Mughan Qurultai. Having secured his borders against the Ottomans and invaded Afghanistan in 1738, his eyes turned toward the immense wealth of the Mughal Empire, which was already struggling with internal instability following the 1707 death of Emperor Aurangzeb.
The confrontation reached its peak on February 24, 1739, at the Battle of Karnal. The Mughal forces, led by Emperor Muhammad Shah, deployed a massive army of roughly 200,000 men, featuring a front two miles wide and deep. This force included several war elephants, which the Persians used as easy targets. Nader Shah’s strategy relied on waiting for the Mughals to come within range before unleashing devastating, synchronized volleys of gunfire. The Persian army's discipline proved far superior to the Mughal's disorganized mass; within just two hours, the Mughal lines collapsed into a rout.
The aftermath was catastrophic for the Mughals. Following the battle, Nader Shah’s troops sacked Delhi, seizing a staggering fortune. This included precious metals, horses, elephants, and skilled artisans, as well as the legendary Peacock Throne, adorned with diamonds. While Muhammad Shah remained on his throne, the loss of prestige and wealth was terminal. The empire's decline set the stage for its eventual collapse during the subsequent expansion of the British East India Company. The human cost reflected the disparity in military efficiency: while the Persians suffered about 400 deaths and 700 injuries, the Mughal losses reached approximately 10,000 men.
Source: Nader Shah Attacks India - Sack of Delhi 1739
