Dr Balaji Jagannathan was stabbed seven times in the Kalaignar Centenary Hospital in Guindy, Chennai, by the son of a patient.

The video, now going viral, showed the accused Vignesh covertly fishing out a knife after the crime, wiping it and then hiding it to his right. He then calmly walks and throws the knife away. "He cut him," a voice in the background can be heard repeatedly ...

An oncologist at Chennai's Kalaignar Centenary Super-Specialty Hospital, Dr Balaji Jaganathan, was seriously injured in a knife attack by a patient's relative dissatisfied with the treatment his mother received.