A Public Interest Litigation (PIL) has been filed before the Calcutta High Court seeking a probe by the Central Bureau of Investigation (CBI) into the death of singer-composer Krishnakumar Kunnath popularly known as KK, who passed away on Tuesday hours after performing in a concert at Kolkata. He was in the city for a two-day concert, and fell ill during an event at Nazrul Mancha. He is...