The Battle of Panipat (1556) is perhaps one of the greatest battles fought by the Hindustani Raj in their five-century long history. It was fought between the forces of Samrat Hem Chandra Vikramaditya, popularly called Hemu - the Hindu king who was ruling North India from Delhi, and the army of Akbar on November 5, 1556. It concluded in a decisive victory for the Hindustani Raj.
On January 24, 1556, The ruler of the Mughal Empire, Humanyun died in Delhi. He was succeeded by his son, Akbar who at the time was only 13 years old. At the time, the Mughal army only ruled the North of Hindustan with their rule confined to Kabul, Kandahar, parts of Delhi and Punjab. Akbar was then campaigning in Kabul with his guardian, Bairam Khan to acquire more territories and quell the rebellion happening in and around Kabul at that time. Hemu at the time had just taken control of the Sur Empire and because he himself was a Hindu, he converted it into a Hindu Empire. He had then started recruiting Hindus to join his army and his cause. He marched to Delhi and attacked the garrison stationed there. The Mughals took 3000 casualties but their commander managed to escape.
The main Mughal army, when they heard of the developments in Delhi where in double minds to do what. Most generals advised Akbar not to attack Delhi and retreat to Kabul.
However, his regent Bairam Khan thought otherwise and marched the army towards Delhi. Both the armies met at historic battlefield of Panipat, where, thirty years earlier, Akbar's grandfather Babur had defeated Ibrahim Lodi in what is now known as the First Battle of Panipat. When the battle started, the Mughal army was facing a much larger army at Panipat. Hemu, who was sitting on his Howdah (elephant seat) and leading his army himself, sent waves of charging elephants at the Mughal lines and it seemed that the Mughal army was about to rout.
In our timeline, Khan Zaman I, the veteran of many a war and an able general had planned otherwise as the warriors of that time, including Hemu wore armour completely covering their body specially the vulnerable organs except the eyes. After repeated attempts a stray arrow struck Hemu's eye and he was knocked down senseless. However, in this TL, the continuous arrows continue to miss his eye and eventually, the Mughal Army is routed. Many high-ranking Mughals are captured and Akbar is killed when he was trying to escape.
After the killing of Akbar and his generals Bobbies was sent to Delhi and hanged outside Purana Quila on a "gibbet". Most Mughal territory was taken within five years and almost all of Afghanistan was captured. With a strong Hindu king on the throne of Delhi, many rebellions began in Muslim Sultanate which would all lead up to the Battle of Talikota in 1565.
The Battle is viewed as the start of the Hindustani Raj, an Empire which would go on to span most of South Asia and then violently reform into