The boy, identified as Sudipta Dutta, was an HSC examinee, said Dhanmondi police OC Nur-e-Azam.
He, however, could not provide further details of the victim.
Police recovered the body from the Dhanmondi lake around 8:30am after being informed by locals, said the police officer. “The body has swollen. It’s not yet clear whether there are any marks of injury.”
The body has been sent to the Dhaka Medical College Hospital for autopsy.