Siddiqui's performance received positive reviews from critics. Archika Khurana of
The Times of India rated 3 stars out of 5 and stated that "‘Rautu Ka Raaz’ is a slow-moving murder mystery that sustains its suspenseful atmosphere, keeping viewers intrigued as the mystery unfolds." Anindita Mukherjee of
India Today gave 3 stars out of 5 and said that " ‘Rautu Ka Raaz’ is a decent watch for those who love everything about hill station thrillers, cop mysteries, and, of course, Nawaz. The film has much to offer and goes beyond its stellar star cast. You won't regret it if you add it to your weekend binge-list." Nandini Ramnath of
Scroll.in observes that "Rautu Ka Raaz is parodying your average police procedural." Anuj Kumar of
The Hindu writes in his review "It is a departure from blood-stained, breakneck crime thrillers, director Anand Surapur’s film impresses with its ambition but flunks in probing the characters and their circumstances" Mayur Sanap of
rediff.com gave 1.5 stars out of 5 and stated that "Rautu Ka Raaz is a dragged-out slow burner of a film that just fails to ignite" A critic of
Bollywood Hungama gave 2 stars out of 5 and said that "Rautu Ka Raaz has some interesting moments as well as an unpredictable climax. But the script suffers due to certain loose ends and also, it’s a film devoid of thrills and action." == References ==