The suspect, Abdur Rahim, 24, son of Akkas Sikder, is a resident of Sitarampur village in Kashiani upazila of the district and a muezzin at BSCIC Mosque.
Local sources said the victim, who was a play-group student of a local private school, used to take Arabic lesson from the BSCIC Mosque.
The boy went to the mosque in the morning. After the secluded time of teaching, the muezzin called the boy to his room and raped.
As the victim did not return home on time, his father went to the mosque and rescued the boy from muezzin’s room.
After knowing the incident, locals confined the muezzin at his room for two hours. Later, police rescued him and took him to their custody.