HAYAT KHAN (d. 1688), one of the disbanded officials of the Mughal army who, along with five hundred Pathan soldiers, was recruited by Guru Gobind Singh at Paonta Sahib, on the recommendation of Pir Buddhu Shah of Sadhaura. On the eve of the battle of Bhangani, he however deserted the Guru and joined the hill chiefs against him. Hayat Khan was challenged in the battle by Kirpal, the mahant or head of the Udasi sadhus. Kirpal killed Hayat Khan with his heavy club. The feat is described by Guru Gobind Singh in a vivid image in his Bachitra Natak.
References :
1. Bachitra Natak.
2. Kuir Singh, Gurbilas Patshahi 10. Patiala, 1968
3. Senapati, Kavi, Sri Gur Sabha. Patiala, 1968
4. Santokh Singh, Bhai, Sn Cur Pratap Suraj Granth. Amritsar, 1927-33