An unnamed Bihari migrant and aspiring hockey player who accidentally stumbles upon a packet of heroin and falls into a nightmare of exploitation and forced addiction. Sartaj Singh (Diljit Dosanjh):

The film boasts a talented ensemble cast, with each character bringing their own unique perspective to the narrative. Here's a brief overview of the main characters:

Since the most common use of this specific phrasing relates to the film's impact on digital media and its controversial release, here is an essay exploring that "index" from a cultural and historical perspective. The Digital Paradox: Analyzing the "Index of Udta Punjab"

The film’s strength lies in its intersecting storylines, each representing a different facet of the crisis: