THIRUVANANTHAPURAM: A two-and-a-half-year-old boy died after a drilling machine penetrated his head in a horrific incident that happened in Padinjare Nada in the capital city. The victim is Dhruv. The incident happened the other day. He died while undergoing treatment in the hospital. The machine was brought home as some maintenance work was going on. The accident happened when the boy took this machine to play, evading the eyes of the elders.