A South Korean national was allegedly molested by some locals in a private bus in Kolkata on Monday, the police said.
The Kolkata Police said they have arrested an accused.
A case has been registered at Burrabazar Police Station.
The incident happened when the victim was travelling in a bus with two other South Korean nationals, reports said.
A British tourist suffered serious injuries in her leg when she tried to escape a rape attempt by a hotelier at Agra city in Uttar Pradesh last week.
India´s image abroad has taken a beating with the gang rape of a Swiss woman in Madhya Pradesh this month. The victim was on a cycle expedition with her husband from Orcha to Agra when the attack took place in a village where they were camping.
Various countries have issued travel advisory for its citizens visiting India after a spate of attack on women from abroad and the nationwide protest over the fatal Delhi bus gang rape.