The 14-year-old class 9 student was allegedly raped by Amit, 19, who also lived in her neighbourhood in Faridabad on May 6, and committed suicide in her house two days later.
Amit, who is a contract worker in a private company, was arrested from his hideout in Faridabad.
"The girl locked herself in the room, poured petrol and set herself on fire," Sushila, a police officer, told IANS.
The accused was booked under Section 306 (abetment to suicide) of the Indian Penal Code (IPC), Section 4 of Protection of Children from Sexual Offences (Pocso) Act at women police station.
"He was presented before a court which remanded him to 14 days judicial custody," the police officer said.
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