Mysuru: Nonagenarian Ustad Krishna Jettappa (94), mentor and guide for many wrestlers of the famed ‘Vajramushti Kaalaga’ for over 50 years,  passed away at his residence in Raghavendranagar here on Saturday due to age-related ailments. He is survived by his wife and 10 children. Jettappa was also a traditional Orthopaedician and a healer. He was…