हँसो हँसो ऐ दुनियावालों

A 1942 Hindi social drama directed by Dwarka Khosla, with Rattanbai and Devaskar in the lead and Gope providing comic relief. Its lasting significance lies less in the plot than in its music: this was the debut of C. Ramchandra as an independent music director, the composer who would go on to define a strand of mid-century Hindi film song. Lyrics throughout were by Waheed Qureshi.

C. Ramchandra composed all nine songs to lyrics by Waheed Qureshi. The catalogue leans toward the light, satirical and playful registers suggested by the film's title — a streetside vendor's cry (Aaya Aaya Re Ganderi Wala), a domestic wish-song (Chhota Sa Bangla Bana Do More Raja), a coy romance (Sawariya Kahe Naino Se Naina Milaye) — alongside the longing of 'Mann Ki Asha Jagi Re', issued in two parts. No individual playback singers are documented in the surviving listings.

Haso Haso Ai Duniyawallaon is historically notable as the first film for which C. Ramchandra (Chitalkar) received an independent music-director credit, before his celebrated work of the later 1940s and 1950s. The soundtrack — nine songs to Waheed Qureshi's lyrics — is the principal surviving record of the film and an early window onto the composer who would later score Albela, Anarkali and Shola Aur Shabnam.