<p>Prime Minister Narendra Modi on June 01 expressed grief over the demise of singer Krishnakumar Kunnath, popularly known as KK through his social media. </p>.<p>Union Home Minister Amit Shah also expresses his condolences on the singer’s sudden demise. Vice President M Venkaiah Naidu expresses condolences on the demise of Singer Krishnakumar Kunnath. Singer Krishnakumar Kunnath, better known as KK, passed away on May 31. </p>.<p>The singer fell ill while performing at an event in Kolkata and was brought to the CMRI hospital, where he was declared dead.</p>