Police in India's Haryana state are hunting for suspects wanted over the gang rape of a mentally disabled woman.
The 28-year-old woman went missing on 1 February in Rohtak town, where she was undergoing treatment at a local hospital. Her mutilated body was found in a field on Wednesday.
A post mortem examination has confirmed multiple sexual assaults.
On Sunday, hundreds of people blocked a highway and held candlelight vigils in protest against the incident.
The police said they had some "crucial leads" and were hoping to arrest some suspects soon.
"Preliminary investigations point to aggravated sexual assault and murder. Seven police teams are probing the case," senior police official Shashank Anand told BBC Hindi.
Reports said that the woman, who was from Nepal, had travelled to Rohtak a few months ago to live with her sister and receive treatment at a local hospital.
She went missing from her sister's home and her body was found in a field by a highway, some 18km (11 miles) away, police said.
The post mortem revealed that stones, blades and sticks were forced inside her during the attack, reports say.
The woman had suffered "severe injuries" and her "heart and lung were missing", Dr SK Dhattarawal, who carried out the examination, told BBC Hindi.
Policemen looking for clues at the place where the body of the gang rape victim was found in Rohtak, Haryana