An 85-year-old cardiologist, Dr Ashwin Mehta, is sort of a legend among the medical fraternity in Mumbai. In the 1990s, he was possibly the first in the city to use primary angioplasty in acute myocardial infarction (PAMI) in heart attack cases. Before that, he also helped set up the cardiology department at the Sion hospital and then went on to teach there, training thousands who went on to serve in smaller towns.