A man allegedly doused his wife with petrol and set her on fire in the New Pind area of Sukkur, DawnNewsTV reported on Thursday.
Police said the woman reportedly attended a wedding function at her uncle's residence against the wishes of her husband, "who also suspected her of being unfaithful to him".
Subsequently, the accused lost his temper during a domestic squabble, reportedly setting the victim ablaze.
The police reached the scene soon after the incident and rushed the victim to Civil Hospital Sukkur, where she is being treated. Doctors said that the victim has burns on 99 per cent of her body.
Meanwhile, police arrested the main accused along with his accomplice and filed a first information report against them.
Cases of domestic violence are rife in Pakistan in general and Sindh in particular.
A recent report by Sindh’s women development department showed that a total of 1,643 cases of various types of violent acts — from honour killing to custody of children and maintenance — were filed by women in Sindh since July 2017.