Khan and Tehmasp Khan Jalair started for Delhi with an army of 4,000 horses on 7 March. Khan carried a letter from Muhammad Shah to Lutfullah Khan Sadiq, the governor of Delhi, asking Sadiq to give Jalair the key to the palaces. Khan reached Delhi on 9 March, and welcomed both the emperors in Shalimar Bagh eight days later. On the night of 19/20 March he retired to his house, and died before dawn. There is no consensus amongst historians about his cause of death. According to historian Abul Qasim Lahori, Khan died of "bodily ailments". Haricharan Das believes that he succumbed to a cancer which had developed in his legs. Rustam Ali, the author of "Tarikh-i-Hind", says that Khan committed suicide by drinking poison.