A major tip of the hat to OG for pointing this out to me...
Here is the synopsis from the Facebook page:
Pune. Circa 1992. The life of a private investigator with a failing marriage takes a dangerous turn after he takes up a case that is both highly complex, and deeply personal.
It looks like Pune 52 is set to be Marathi Noir, which I am looking forward to exploring! Hopefully the subtitles on the trailer are a sign that the entire film will be subtitled when it releases.