In the Battle of Fategarh and Farrukhabad, they defeated the Rohillas and Bangash (March, 1751-April, 1752).
In between, until Najib-ul-Daula, the governor of Saharanpur, who later founded city of Najibabad, invaded the city with his army of Rohillas in 1757, and ruled here, leading to its wide spread development, though after his death in 1770, it was successively annexed by surrounding tribes of Rajputs, Gujjars, Sikhs and Gurkhas who ruled the region in quick succession, and lead to its steady downfall.
He was placed on the Mughal throne in December 1759 by Ghazi ud-Din Khan Feroze Jung III but subsequently deposed by the Afghan confederation (Rohillas and Ahmad Shah Abdali) and Nawab of Oudh Shuja-ud-Daula in 1760 in recognition of Shah Alam II as the rightful heir to the throne who was in exile at Allahabad.