The police say the pair offended Islamic mores on public decency but were later released on bail.
After the young woman says "yes," he slips a ring on her finger to cheers from onlookers. The two weren't identified.
Mostafa Norouzi, deputy police chief in Arak, told the Shahrvand daily that it's unacceptable for the young "to do whatever is common in other places of the world and disregard mores, culture and religion.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)