 The united forces of Najib-ud-daula and the Marathas advanced from Delhi; but at Koil Najib-ud-daula fell ill and retraced his steps, leaving his eldest son, Zabita Khan to operate with the Marathas.Zabita Khan however, was by no means disposed to fight against his brother Afghans.The Marathas, knowing this, kept him practically a prisoner in their camp and he requested Hafiz Rahmat Khan to obtain his release.