Mysuru:  Visushis H.M. Sindhu Suchetan and H.M. Smitha Karthik  have mastered both violin and vocal music and carved a niche in both the streams. The siblings are the grand daughters of veteran violinist A.V. Venakatanarayana of Mysuru, a disciple of Sangeetha Kalanidhi Mysore T. Chowdiah.  They were initiated into music at very young age and…