The Kollam police took Dhanapala Singham and Sreedasan from Sri Lanka into custody on Friday midnight on the suspicion that they had been brought here by human-trafficking racketeers.
People at Kavanad in the city had manhandled them as they could not answer the questions posed to them. Singham was badly injured and has been admitted to a hospital.
Police said that on interrogation, the two said they were from Jaffna and were brought here to be transported in a boat from the Shakthikulangara harbour to some point from where they could board a ship to go abroad.