The incident occurred near Khedapada village last evening when the tourists were returning after visiting nearby areas.
One of the tourists, K Venkateswaran Kannan, a resident of Hyderabad, lodged a written complaint at Chandili police station today.
Rayagada SDPO Y J Rao said that the complainant alleged they had spotted a few persons transporting cows and beating them up.
"When they intervened, the cow transporters attacked them," he said.
The tourists, who claims to be animal lovers, also approached district collector Guha Poonam Tapas Kumar and sought her intervention for swift action.
"I have directed the police to take action against the attackers. The district has conducive environment for the tourists and their safety is our top priority," the collector said.
Disclaimer: No Business Standard Journalist was involved in creation of this content