Singer KK, who passed away on May 31, died due to cardiac arrest, indicate the preliminary findings of the post-mortem report, reported PTI. Reportedly, the police also said that there was no foul play behind the singer's death. As reported by PTI, the final autopsy report will be available after 72 hours. Krishnakumar Kunnath was known by his stage name KK. The singer was known for songs like Pal' and 'Yaaron' which became instant hits. 53-year-old KK fell ill at the hotel where he was staying after a concert in Nazrul Mancha auditorium in Kolkata. Reportedly, doctors at CMRI hospital said KK was brought dead. KK Has Given Hits Like ‘Tu Hi Meri Shab Hai’, ‘Khuda Jaane’, ‘Tadap Tadap Ke’, ‘Aankhon Mein Teri’, ‘Mujhko Pehchanlo’ among many others. Watch the video to know more.