Chahar gulzar-i Shujaʿi 4: Fight between Kaim Khan and Sa'du-llah Khan.

4

In 1162 A.H. (1749 A.D.), when Safdar Jang was endeavouring to recover possession of the districts which belonged to the Emperor, a misunderstanding arose between Kaim Khan, etc., the sons of Muhammad Bangash Afghan, and Sa'du-llah Khan and other sons of 'Ali Muhammad Khan Rohilla; and the two parties, the Afghans and the Rohillas, went so far in their animosity towards each other that they both had recourse to arms. Many battles took place between them, and at last the contest ended in the destruction of Kaim Khan, the eldest son of Muhammad Khan Bangash. The Afghans, after the death of their chief, took to flight; and the Rohillas returned victorious to their homes.
When the news of Kaim Khan's death became known, Safdar Jang left the matter with Suraj Mal Jat unsettled, and immediately came to Dehli. With the permission of the Emperor, he soon marched to Farrukhabad, the residence of Kaim Khan, and confiscated all the property of the Afghans, leaving only a few villages sufficient for the maintenance of Ahmad Khan and the other sons and relatives of Muhammad Khan. He placed the estates of the Afghans under the management of Raja Nuwul Rai, who acted as the Nawab's deputy in the governorship of the province of Oudh and Allahabad, and himself returned to Dehli.