Stating that the sudden replacement of Mysuru City Congress President T.S. Ravishankar with R. Murthy, a former KEA Chairman, was unfortunate, former MP and senior Congress leader A.H. Vishwanath has maintained that the change was effected at the insistence of Chief Minister Siddharamaiah. Addressing a press meet at Pathrakarthara Bhavan here yesterday, Vishwanath said that…