sentences:  On 15 January 1767, Ahmad Shah wrote letters to the Sardars, including Khushal Singh, to the effect that if they were desirous of entering his service they should come and join him, but if they had any hostile intentions they should meet him in the field and fight him.49 Khushal Singh and others warily accepted Durrani's proposal of joining him and told to meet hire in the field of battle.Most of the areas under him which had been depopulated due to the repeated incursions of the Sikhs and the Afghan invaders were once again populated under the efficient administration of Khushal Singh.He had a big army comprising about twenty thousand horse and foot.5l Khushal desperately needed an army this large because he would not be able to command the respect of the more honourable chiefs in his area.