Ali Mohammed Khan was the leader of the Rohillas. The Rohillas were a Muslim tribe that originated from the mountainous region of Rohilkhand in present-day Uttar Pradesh, India. They were known for their military prowess and played a significant role in the politics and conflicts of the region during the 18th century.

The Rohillas and their leader, Ali Mohammed Khan, emerged as a prominent force in the region during the decline of the Mughal Empire. With the weakening of Mughal authority, various regional powers sought to assert their control over the territory. The Rohillas, under the leadership of Ali Mohammed Khan, carved out their own principality in Rohilkhand.

Ali Mohammed Khan's leadership was marked by his military skills and his ability to maintain the autonomy of the Rohilla state. He successfully defended his territory against invasions from both external and internal forces.

The Rohillas faced numerous challenges during their rule, including conflicts with neighboring states and the Marathas. However, Ali Mohammed Khan skillfully navigated these challenges and managed to maintain the independence and stability of the Rohilla state.

Ali Mohammed Khan's leadership also extended beyond the military realm. He was known for his administrative abilities and his efforts to promote economic development in the region. He implemented policies that encouraged trade and agriculture, which contributed to the prosperity of the Rohilla state.

However, the Rohilla state faced a major crisis in the late 18th century. Shuja-ud-Daulah, the Nawab of Awadh, sought to expand his control over Rohilkhand and launched a military campaign against the Rohillas. Despite their initial resistance, the Rohillas were eventually defeated and their state was annexed by Awadh.

In conclusion, Ali Mohammed Khan was the leader of the Rohillas, a Muslim tribe that established their own principality in Rohilkhand. He was known for his military skills, administrative abilities, and efforts to promote economic development. However, the Rohilla state eventually fell to the forces of Shuja-ud-Daulah, the Nawab of Awadh.