The toddler, Hafizur Sheikh, was yesterday crying in a room of his house when an angry Nupur Begum came in and threw him on the hard ground, hurting his head and chest, a police official quoted the child's family as saying.
The boy was rushed to the hospital, where he succumbed to his injuries.
Hafizur's father is a rickshaw-puller and the family used to live in a rented room in southcentral Barishal city at a house owned by Nupur's husband.