Zaman Shah, now seeing his realm disintegrating, had marched to Peshawar, where he heard the news of his brother, Humayun, with the assistance of the Talpur in Sindh had seized Kandahar. He turned from Peshawar to meet him at Kandahar. Humayun was betrayed by the Afghans in Kandahar, forcing him to flee again, this time to Sindh, but then attempted to escape to Herat in the domain of his brother Mahmud Shah Durrani, Zaman Shah had captured Humayun with a detachment of horses. Zaman Shah had ordered Humayun to be put to death, making sure Kandahar wouldn't be under threat from him once again.
