The incident took place late in the night while the entire village was busy in celebrating Chaiti Parba.
Villagers were left in a state of shock after coming to know about the incident and called up Sadar Police.
A police team led by Koraput SDPO rushed to the spot and carried out preliminary investigation and took the accused into custody. A special team led by Sadar Police Station IIC was formed later to carry out a detailed investigation into the same.
While the special team has detained an unspecified number of people including the neighbours of the accused for quizzing, the motive of the accused behind killing her son is yet to be ascertained.