Pash was born as Avtar Singh Sandhu in 1950 in a small village called "Talwandi Salem" in Jalandhar district of Punjab, in a middle-class farmers family. His father Sohan Singh Sandhu was a soldier in the Indian army who also composed poetry as a hobby. Pash grew up in the midst of the Naxalite movement, a revolutionary movement waged in Punjab against the landlords, industrialists, traders, etc. who control the means of production. This was in the midst of the Green revolution which had addressed India's problem of famine using high yield crops, but had also unconsciously led to other forms of inequities in Punjab.