Singer Kailash Kher, known for lending his vocals to songs like Teri Deewani and Chand Sifarish, was allegedly attacked during a concert in Karnataka recently, when two men threw a water bottle at him, demanding to sing a Kannada song.Two people from the district’s Hosapete taluk were arrested on charges of hurling a water bottle at singer Kailash Kher during the valedictory of the three-day Hampi Utsav .