The spurned lover, Amarpal, had on Wednesday killed the Class 12 student using a sickle at Ghar Shayam village in the Kandhla police station area of Shamli district.
Three other people were with Amarpal when he attacked the girl. Tension prevailed in the village as the girl and the accused belonged to different communities, police said.
Today, when her body was handed over to the family after post mortem, they refused to cremate it till all the accused were arrested and stern action was taken against them, Circle Officer Rajesh Tiwari said.
Tiwari said Amarpal had been arrested and weapon used in the crime seized.