The two chased down and bit a man accused of stabbing one of his former colleagues on the roadside in what police describe as a “revenge attack”.
Locals were then able to catch the man, identified as R Raghunath.
The victim is currently receiving treatment for abdominal injuries.
Police say Mr Raghunath attacked the woman because he had lost his job after she accused him of sexual harassment.
The dogs, both of whom are named “puppy”, chased the man after the victim, who was stabbed in the stomach, started screaming.
“Dogs on the streets are highly instinctive. They can sense stress and read body language very well. In this case, the dogs may have sensed something wrong, especially if the lady screamed when she was stabbed.”