The deceased was identified as Monowara Begum, wife of Saudi Arabia expatriate Dhola Khan.
Basail Police Station OC SM Tuhin Ali said Monowara Begum's husband Dhala Khan and son Al-Amin are Saudi expatriates. He lived alone at home.
On Tuesday morning, locals spotted the slit-throat body of her and informed the police. Later, the police recovered the body. There was a longstanding dispute with her neighbor.