A man in Karachi threw acid on a Christian woman after she refused to convert to Islam and marry him.
According to media reports, the 19-year-old suffered 20 per cent burns in the attack.
The family of the girl had previously registered a police complaint against the attacker, who is their neighbour, for harassing the girl and forcing her into marriage.
The police arrested the man after the incident.
Pakistan often ranks among the worst countries for women and has a history of discrimination against women from religious minorities. The incidents of forced conversions of underage Hindu girls and subsequent marriages are common in Sindh.