A man known as police source was hacked to death at T&T bazaar area of Tongi on Tuesday morning.The dead man is Kutub Ali, 35, son of Habibur Rahman of Baghaduar area in the capital’s Nawabganj.He resided along with family members at house of Abdul Majid Mia of Amtoli area.Confirming the incident, Aminul Islam, officer-in-charge (OC) of Tongi Police Station, Kutub Uddin was working as source of police.