Mysuru:  Mysuru APMC President K. Prabhuswamy was elected as a Member of the State Agricultural Marketing Board in a keenly fought contest here on Monday. Congress-supported candidate Prabhuswamy defeated his arch-rival Venkatesh, a JD(S)-supported candidate by a single vote in the election held at Karnataka Institute for Agricultural Marketing, Hunsur Road. While Prabhuswamy got four…