Shivamogga: H.R. Keshava Murthy, a senior gamaka exponent, who was honoured with Padma Shri earlier this year, passed away at his residence in Hosahalli in Shivamogga taluk yesterday. He was 89. He died due to age-related health problems. He is survived by his wife Rajeshwari and daughter Usha, besides hundreds of students. Keshava Murthy was…