According to police, the heinous crime might have happened when he tried to resist a sexual assault attempt on him by a teenager, supposedly a 17-year-old.
The teenager has been taken into police custody for interrogation, sources said.
The teen took the boy to the marsh field telling the latter that they were going for fishing. When the child tried to resist the sexual assault attempt, the teen hit his face with a bottle and pushed him down to the marsh field.
The motionless body of the child was spotted by locals.
The child’s body, known to be a third standard student, is now at the mortuary of Thiruvananthapuram Medical College Hospital.