Marathe was suffering from age-related diseases and was admitted to the hospital last week. He is survived by his wife.
Marathe, who stole the hearts of music lovers in the late 1960s and 70s, was a native of Maharashtra.
Born in 1929, Marathe had migrated to Kozhikode in 1951.
Marathe had composed music for a few Malayalam films including 'Uppu', 'Mayoora Varnangal', 'Chanjattam' and 'Avivahitharude Swargam'.
The body will be kept at the town hall here this morning for people to pay their last respect to the musician.