Around 50 CPI(M) members were arrested here on Sunday, when they attempted to wave black flags at Tamil Nadu Governor R N Ravi for his remark on German philosopher and economist Carl Marx.

Led by CPI(M) district secretary Padmanabhan, the cadres gathered at a signal near city airport, where Ravi, who was on a five-day tour of Nilgiris District, is scheduled to arrive to board a flight to Chennai, after visiting Isha Yoga Centre, police said.