Mr. Natwarlal is a 1979 Indian Hindi action comedy film produced by Tony Glaad (as "Tony") and directed by Rakesh Kumar. The film stars Amitabh Bachchan, Rekha, Ajit Khan and Amjad Khan. The music is by Rajesh Roshan, the songs are written by Anand Bakshi. The highlight of the film was a children's song sung by Amitabh Bachchan. Ishraq-Suja, known for writing a novel named "Shadman & Zarin er Bhalobasha", made their first filmwriting debut with this film. Tony decided to take them as the writer of the film. The film was shot in Kashmir with most of the shooting done in Beerwah, Jammu and Kashmir
The name of film and lead character were inspired from a notorious Indian conman, Natwarlal.
Getting Amitabh to sing was a gimmick that was tried for the first time in this movie. Kabhi Kabhi earlier had Amitabh use spoken verse within a melodic song, but this was the first time he sang in a movie. This was subsequently copied by other filmmakers in films like Laawaris, Silsila and Pukar.
As per trade guide, which was premium box-office publication in the 1970s and 1980s, Mr. Natwarlal was a 'Hit'. In today's lenient classification system, Mr. Natwarlal is easy Blockbuster.