Jaspal Singh, Hemlata, Chandrani Mukherjee and Sushil Kumar are vocalists associated primarily with Indian film music and playback singing. Originating from India, they have contributed across genres typical of Bollywood and regional cinema, including film songs, ghazals, and melodic popular music. Their periods of activity span mainly from the 1960s through the 1990s, with Hemlata and Chandrani Mukherjee particularly prominent in the 1970s and 1980s; Jaspal Singh and Sushil Kumar were active as playback voices in similar decades. Their work is characterized by lyrical, melody-driven singing tailored to cinematic context, clear diction, and an emphasis on expressive interpretation suited to film narratives and the melodic conventions of Indian popular music.