The miscreants armed with weapon and sticks tried to rob the couple.
"We somehow managed to cross the river with the help of the boat and went in to the nearby village, from where we called Police for help," Matthew said.
Patna Senior Superintendent of Police Manu Maharaj said belongings of the couple have been recovered from the possession of the two accused.
"The men were arrested within two hours. A speedy trial will be done and it will be seen that such incidents do not recur," Maharaj said.
This incident came days after a Swiss couple was assaulted in Uttar Pradesh. (ANI)