Detective Inspector Scott Beard said police were called to the house in the suburb of Epsom at about 11:30 am and found three people in critical condition.
According to the police, Mohammed Faizal (25) and Ahmed Fahad (26) recently had a fight and Fahad was waiting for an opportunity to allegedly eliminate Faizal.
Police said the suspected killers followed Khaleel before attacking him suddenly and stabbing him. He died on the spot with multiple bleeding injuries.
According to a letter written by his wife Mehnaaz Fatima to External Affairs Minister S. Jaishankar, Mohiuddin was running a grocery store in Georgia for the last 10 years.