Police said the incident occurred due to some 'earthing problem' in wires, supplying electricity to nearby establishments, which came in contact with metal pipes carried by one of the victims.
"They had taken shelter in a bus stop since it was raining," a police official said.
According to Deputy Commissioner of Police V B Kamalasan Reddy, all those who died hailed from Madhya Pradesh.
The injured person has been admitted to a hospital, he said.