The girl is recuperating in the intensive care unit of a private hospital, police said today.
The accused, Jitendra Sakpal (21), who has done a hotel management course, was arrested yesterday and was produced before a court today, which remanded him in police custody till October 24.
According to the Gorai police, Sakpal and the girl, both residents of suburban Dahisar, were in a relationship but parted ways a few months back after the girl's parents disapproved of their relationship. Sakpal had also proposed to marry her.
After repeated requests, the girl met Sakpal yesterday and the duo went to Gorai Jetty where an argument broke out.
"The accused then forced her to consume acid. When she raised an alarm passersby caught Sakpal and handed him over to police," a police official quoting the complaint filed by the victim said.
The girl's father is a Class IV employee in the city's civic body, while the accused boy's father is employed with a private firm, police said.