Dil ki kali yunhi sada khilti rahe (happy) song is from
Inkaar (1977) and it is sung by
Mohammed Rafi.It stars Vinod Khanna, Vidya Sinha and Shreeram Lagoo in leading roles. This song is penned by
Majrooh Sultanpuri and composed by
Rajesh Roshan. It is produced by Raj Sippy. This song was released on 09 Nov 1977.