Which one of the following was the first Indian sound film?

Alarm Ara
Raja Harishchandra
Kishan Kanhaiya
Mughal-E-Azam

The correct answer is (a) Alarm Ara. It was released in 1931 and was directed by Ardeshir Irani. It was the first Indian film to have synchronized sound. The film was a commercial success and was praised for its technical innovations.

(b) Raja Harishchandra was a silent film released in 1913. It was directed by Dadasaheb Phalke and is considered to be the first Indian feature film.

(c) Kishan Kanhaiya was a silent film released in 1929. It was directed by V. Shantaram and is considered to be one of the most important films of the silent era in India.

(d) Mughal-E-Azam was a historical drama film released in 1960. It was directed by K. Asif and is considered to be one of the greatest Indian films of all time.