The deceased were identified as Mohin Uddin, son of Foyez Ahmed of Mohammadnagar village; Noor Nabi Manik, Robi Lal Roy, son of Anil Roy of Basurhat Municipality; Abdul Khaleque of Tekerbazar area in Charkakra union; Sajub of Sirajpur union; and Omar Faruk.
Witnesses said the men bought spirit from a pharmacy adjacent to Basurhat Bazar. They mixed it with local liquor before drinking it.
Confirming the deaths, Arifur Rahman, officer-in-charge of Companiganj Police Station, said they sealed off the pharmacy and arrested its owner Jahid Alam, 40, and his son Priyom, 20.
The bodies of the deceased were sent to the Sadar Hospital for autopsy.
Two cases – one for murder and another for distributing spirit – were filed at Companiganj Police Station.