'Drishyam 3' producer Kumar Mangat Pathak said he was shocked after Akshaye Khanna, who played IG Tarun Ahlawat in 'Drishyam 2', demanded to wear a wig in the film. "'Drishyam 3' begins where 'Drishyam 2' ended. How can his character suddenly get hair? Is there any technology in the world that can grow hair within minutes?" questioned Pathak.