The wife of the deceased doctor had reported the incident and as per her statement she had gone outside for a walk and found both her husband and son dead when she returned home.
The incident did not seem to be an attempt of robbery or dacoity. However, the investigations were under way, the police said.
Meanwhile, Inspector General of Police (IGP), Sindh, Dr Syed Kaleem Imam, has sought details of the incident and directed the SSP-Investigation (South) to ensure the monitoring of the case by himself.
The Sindh Police chief directed that transparent investigation into the incident and arrest of culprits be ensured.