Babak (d. 1642), a Muslim rababi or musician, kept Guru Hargobind company and recited the sacred hymns at divans morning and evening. The word babak, from Persian, means faithful. As says the Gurbilas Chhevin Patshahi, Babak was, at the death of Bhai Satta and Rai Balvand who used to recite sacred hymns for the Guru, asked to perform the Muslim obsequities for them.