An electrician has been arrested for raping a 16-year-old girl from Manipur related to him by marriage, police said on Sunday.Police said the 16-year girl from Manipur, who had come to Gurgaon only two days ago, filed a complaint of sexual assault against S. Dass, who is the brother-in-law of her elder sister.DLF phase-1 police station chief Amit Kumar told IANS that accused Dass, 26, has been arrested after a case of rape and under the Protection of Children from Sexual Offences (POCSO) Act was registered.