According to the Eichankulam Police, as the son was not in the house, the mother had gone looking for him and found his body in the well and notified the police.
The deceased is a 40-year-old named Selvam.
The body had been removed to the Vavuniya Hospital for the Postmortem examination.
However, the police say that suspicions have been raised over the death as the deceased's hands were found to be bound with string.
Further investigations are being carried out by the Eichankulam Police.
(Pics by Madawa Kulasooriya- Vavuniya Corr.)