He breathed his last at Square Hospitals around 2:30am, Shabbir Siddiqui, son of Bari Siddiqui, told UNB.
The noted singer had been on life support at the intensive care unit (ICU) of the hospital since Saturday.
Earlier on Friday last, Bari Siddiqui, who had been suffering from kidney-related problems for a couple of years, was admitted to the hospital on Friday night after he fell unconscious following a chest pain.
Born on November 15, 1954, Bari Siddiqui obtained his bachelor’s degree from Dhaka University and joined Bangladesh Television in 1985.
He won the Bachsas Award for his music direction in the film, Srabon Megher Din (1999), for the song Showa Chan Pakhi. He released a folk album, ‘Lokhkho Tara’, in 2000.