To quote the Gurbilas again, he took part in the battle of Amritsar in 1629 during which he assisted in the evacuation of the Guru\’s family to Jhabal. Going by the Gurbilas account, Guru Hargobind, before he departed the world, asked Babak to return to Amritsar. As bidden by the Guru, Babak retired to Amritsar where he died in 1642.
References :
1. Gurbilas Chhevin Patshahi. Patiala, 1970
2. Gian Singh, Giani, Twarikh Guru Khalsa. Patiala, 1970
3. Macauliffe, M. A., The Sikh Religion. Oxford, 1909