The police on May 28 took the father of the boy who chanted 'provocative' slogans at a Popular Front of India (PFI) rally in Alappuzha on May 21 into custody.
Though the police traced the boy to Palluruthy within Kochi city police limits two days ago, the family had gone into hiding. The police nabbed the father after the family returned to their house.
Alappuzha Deputy Superintendent of Police N.R. Jayaraj said the father was being brought to Alappuzha. His arrest would be recorded later.