In the second such attack in three days, a Sri Lankan Buddhist monk was assaulted by three unidentified persons on the Tamil Nadu Express at the Central Railway Station here on Monday.

A Buddhist monk was assaulted inside the Big Temple in Thanjavur on Saturday.The police said 19 tourists from Sri Lanka, who left for Bodh Gaya on March 3, were returning to Chennai by the train. Among them was W.M.K. Bhandara, 33, from Kandy. As the train entered Platform 6 around 7.15 a.m., “… three persons jumped into the coach and started attacking the monk…,” said a vendor.

The Government Railway Police have registered a case and are investigating. They have also intensified checks on all trains. “We suspect that those who indulged in the attack are from a Tamil organisation,” a police officer said.