The body of Abul Khayer, 56, was recovered from the toilet of the bank on the first floor of six-storied Chak Circular Market with marks of injuries in his abdomen and left thigh and a napkin tied around his throat.

Locals said sweeper Jasmin called Khayer at 6:00am, as he used to sleep inside but got no response.

Ruhul Amin, manager of the branch, also received no response from Khayer and opened the gate with duplicate keys. He found Khayer dead in the toilet.

The body was sent to Mitford hospital for autopsy.

Hailing from Baluakandi village in Gazaria, Munsiganj, Khayer had been working in the bank for the last 11 years and was two months away from his retirement.

Police said criminals killed Khayer within the first six hours of yesterday and took the keys to lock the gate from outside.

Asked why the murderers did not take money or anything, police and Amin said the killing might be a result of personal enmity. Police further said Khayer had enmity with his cousins Shahjahan and Mizan. But Haris Mia, Khayer's younger brother, refuted the allegation.

Police picked up caretaker of the building Shamsu Mia, who failed to give any clue.

Amin filed a case with Lalbagh Police Station.