The Dombivli police have arrested a 28-year-old woman for allegedly thrashing her three-and-half-year-old stepson and causing his death. While the mother was not telling the truth about the kid’s death, his stepbrother spilled the beans, said police sources. She apparently didn’t want the stepson, said police sources.

Around 4 pm on Wednesday, the Tilak Nagar police were alerted by Shastri Nagar Hospital in Dombivli West about a child brought with injuries. He was shifted to the Thane Municipal Corporation-run Chatrapati Shivaji Maharaj Hospital at Kalwa. The Tilak Nagar cops later learnt that the kid was declared dead on arrival at 4.25 pm.