The boy had come out of his house to answer nature's call at around 6 AM when the elephant attacked and trampled him to death,police said.
The pachyderm also attacked the boy's father when he rushed to his assistance. The elephant moved out after the incident, police said.
Protesting against the incident, over 200 villagers staged picketing on Kolappuli-Gudalur Road, paralysing traffic for nearly two hours.
The protesters dispersed following an assurance from senior forest department officials that steps would be taken to prevent such incidents in future.