There is no widely recognized film titled Kaala Patthar released in 2021. Most references to this title pertain to the iconic 1979 Bollywood disaster drama directed by Yash Chopra. TVGuide.com However, if you are referring to the 2024 Kannada thriller Kaalapatthar
The 2024 film Kaalapatthar is a thriller drama that serves as the directorial debut for actor Vicky Varun. index of kaala patthar 2021