According to Sydney Morning Herald report, the two men were employed by Ranjodh Singh. They were questioned about their relationship with him.
Police officials are looking into claims that Singh may have been murdered in a fight over unpaid money to workers.
Ranjodh Singh's body was found beside Wilga road, Willbriggie, in southwest New South Wales, Dec 29.
A post-mortem examination showed that his throat had been slit and he had suffered multiple stab wounds.