Chennai: Violin Maestro T.N. Krishnan (Tripunithura Narayanaiyer Krishnan) passed away here yesterday due to age-related ailments.  He entered the music world as a child prodigy and performed till his last days. He was 92, and is survived by wife Kamala, son Sriram Krishnan and daughter Viji Krishnan, who often accompanied their father. Born on Oct….