[3] The music was composed by Vishnu Vijay and Niranj Suresh, while the cinematography and editing were handled by Jebin Jacob and Manoj Kannoth.

Alby is a short-tempered man who along with his girlfriend Nancy smuggle gold to Kanhangad through Kannur International Airport for a jewellery owner Moosa Haji.

[6][7] According to director Mridul Nair, the film was originally scheduled to shoot during the second COVID-19 lockdown phase, but it was later pushed back due to pandemic restrictions.

[14] The official teaser of the film was unveiled by Prithviraj, Tovino Thomas and Unni Mukundan through their social media handles on 14 July 2023.

[24] Sajin Shrijith of The New Indian Express gave 3.5 out of 5 stars and wrote, "Kasargold is a fairly gripping, anxiety-inducing thriller that succeeds at creating a sense of claustrophobia, despite being set outdoors, by the time it gets to the closing credits.

"[25] Sanjith Sidhardhan of OTTPlay gave 3.5 out of 5 stars and wrote, "Mridul Nair's Kasargold works because the makers seem to have been clear about what they wanted to accomplish with a movie like this – provide a theatrical experience to the audience by never letting the pace of the film slack.

"[27] Arjun Ramachandran of The South First gave 3 out of 5 stars and wrote, "Kasargold is a story that's inspired by the gold smuggling cases reported in Kerala.

"[28] Cris of The News Minute gave 2.5 out of 5 stars and wrote, "Perhaps, if the writing had left a few stones unturned and been clearer of its stand, Kasargold could have been more enjoyable.

"[29] Anandu Suresh of The Indian Express gave 2 out of 5 stars and wrote, "Though Kasargold had enough to create a memorable actioner, the film disappoints due to sloppy writing.

"[32] Vishal Menon of Film Companion wrote, "Without committing entirely to its otherworldly pitch or its tense starting point, Kasargold remains stuck somewhere in the middle.

"[33] Swathi P. Ajith of Onmanorama wrote, "While Kasargold may not feature the typical mass scenes, it successfully captivates the audience, largely due to the evocative score by Vishnu Vijay.

The film adheres to the characteristic aesthetics of a new-gen movie, with a distinct, eye-catching set design in numerous scenes.