Three people, including a mother and her son, drowned after falling into a manhole of a poultry hatchery in Mymensingh's Bhaluka upazila yesterday. The victims were identified as Rani Bagchi (25), her three-and-a-half-year-old son Rohit Bagchi and hatchery labourer Md Ridoy Mia (25), reports our Mymensingh correspondent. Rani's husband Sajal Bagchi is an engineer of the