Javed Sheikh, the most prolific serial killer of the Indian subcontinent, abducted, raped, and killed 100 children, then dismembered and dissolved their bodies in acid before draining them into the local river.
So, a movie based on such a person has a lot of options and opportunities to explore the usual modus operandi, the details and gore of the crimes themselves, the motives and psyche of the criminal, or the failure of the society and system where hundreds of kids went missing unnoticed and no efforts were made to find them or to probe the reason.
Kukri does neither of these. The writing is lazy; even the Wikipedia page about Javed has more structure and research. The whole cast hams throughout the film, so much so that a street play performance would appear as subtle and nuanced. Nothing worth noticing on the technical side either.
This must be the most unmotivated and uninspired filmmaking I have come across.