The accused identified as Akbar son of Rehmani, Akbar son of Amir and Imran were yesterday arrested on the charges of abduction, gang-rape and murder of the victim, Superintendent of Police (Shamli) Vijay Bhushan said.
The trio abducted the girl, gang-raped her and dumped her body after strangulating her, Bhushan said.
The accused have confessed of their crime, the SP said.
The girl, a resident of Basi village in Shamli district, went missing on on August 13 and was found dead at Chamrawal village of Baghpat district on August 22.