[2] The film stars Vicky Varun and Dhanya Ramkumar, alongside T. S. Nagabharana, Achyuth Kumar, and Sampath Maitreya in supporting roles.

[10] In January 2022, Vicky narrated the story to Dhanya Ramkumar, who made her debut as a lead actress in Ninna Sanihake, and she subsequently joined the project.

[25] Sridevi S of The Times of India rated the film three-and-a-half out of five stars and wrote that "Both story and screenplay are tight, but towards the end, the movie probably needed a banger scene, just to elevate the commercial experience.

"[26] Shashiprasad SM of Times Now gave it three-and-a-half out of five stars and wrote, "A thriller of a kind with a unique story and storytelling, Kaalapatthar offers a fresh experience to the audience.

"[27] Sunayana Suresh of The South First gave it three out of five stars and wrote, "Kaalapatthar is a quirky film that is different from the regular underworld-based commercial fare and that itself is its biggest merit.