Amid strong protests, marker stones were laid for the K-Rail project at Piralasseri in Mulakuzha village, near Chengannur, on Thursday.
Local residents and members of the K-Rail Virudha Samara Samithi who protested against the laying of stones were removed by the police who have registered cases against 18 persons.
As many as seven stones have been laid at Piralasseri. Members of the K-Rail Virudha Janakeeya Samithi said the protest would be intensified in the coming days.