“…Supervisors, who come, in the case of the oldest ones, from the manual workforce and who were, in the case of the younger ones, recruited directly after their studies, form an intermediate body, showing less distinction from the manual workers than the engineers, but still clearly affirm themselves as part of the staff and could fit in what would be a construction yard's aristocracy of labour. Hence, the construction yard's hierarchy is embedded in the opposition between “ kam ” and “ naukri ” explained by Jonathan Parry in his recent book on Bhilai's working classes, Classes of Labour (2019), except that in Madhya Pradesh, the colloquial expression opposed to “ naukri ” is “ mazduri ,” be it in the construction yards or in the urban workshops, which I also studied during my previous research (Kaba, 2022). But both overlap the distinction made by Gérard Heuzé between “service” and “work” (1996).…”