Visakhapatnam: A 20-year-old second-year student of IIT-Hyderabad, who had gone missing from the Sangareddy campus since July 17, was found dead in Vizag on Tuesday. The student ended his life by jumping into the sea as he was depressed over his exam backlogs, police said. Dhanavath Karthik might have drowned in the sea around July 19. “Karthik could not concentrate …