According to newsagency PTI, stray dogs had bitten away the victim's face and lower portion of her body which was spotted by a passerby in the urban estate area of Rohtak on May 11, police said.
"Two persons, Sumit and Vikas, have been arrested in this connection," Sub-inspector rpt Sub-inspector Sonipat, Ajay Malik said.
Sumit was an acquaintance of the victim, he said.
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Police said the woman was allegedly kidnapped from Sonipat on May 9 and taken to Rohtak in a car.
The victim was a divorcee.
Newsagency ANI reports, the victim had allegedly refused a marriage proposal, following which the accused reached her home a week later with his friends.
A heated argument broke out which resulted in the woman slapping him. In revenge, the accused along with his friends allegedly raped and murdered her.
The family of the victim said that on May 9, at least five to six youth abducted her from the gate of a private company.
After that the accused took her to a deserted place and gang-raped her.
The victim's mother said that the accused have been pressurizing the woman for marriage for the past one year.
The forensic reports suggested that the victim was mutilated with sharp-edged weapons.
Later, the accused tried to run her over to hide her identity.
"The victim was tortured and her body was mutilated after the gang rape. She was killed after being raped involving at least seven people.
Her skull was smashed in a way which indicates that she was run over by a vehicle in order to hide her identity," the forensic team has stated.
The victim was living with her mother and brother and used to work in a private medicine company.
The woman's parents had filed a missing complaint, based on which the police tracked her parents down.
The parents were called to Rohtak to identify her body.
The distraught parents have claimed that this ghastly attack was carried out by the girl's neighbour and have demanded capital punishment for the rapists.
Further investigation is underway.