Team Melli lost to Bahrain 31-24 in the warm-up match.
The two teams are set to meet again in another friendly on Thursday.
The training camp serves as preparation for the 2026 Asian Men's Handball Championship.
Iran has been drawn in Group D along with Japan, Saudi Arabia and Australia.
The Persians are scheduled to face Saudi Arabia on January 15.
The Asian Handball Championship will be held in Kuwait from January 15 to 29.