In 1623 two Afghan brothers of the Barech tribe, Shah Alam and Husain Khan, settled in the region, bringing with them many other Pashtun settlers. The Rohilla Daud Khan was awarded the "Katehr" region in the then northern India by Mughal emperor Aurangzeb Alamgir (ruled 1658–1707) to suppress Rajput uprisings, which had afflicted this region. Originally, some 20,000 soldiers from various Pashtun Tribes (Yusafzais, Ghoris, Lodis, Ghilzai, Barech, Marwat, Durrani, Tanoli, Tarin, Kakar, Khattak, Afridi and Baqarzai) were hired by Mughals to provide soldiers to the Mughal armies and this was appreciated by Aurangzeb Alamgir, an additional force of 25,000 men was given respected positions in Mughal army. However most of them settled in the Katehar region during Nadir Shah's invasion of northern India in 1739 increasing their population up to 100,0000. Due to the large settlement of Rohilla Afghans, the Katehar region gained fame as Rohilkhand.