Superintendent of Police (City) Prasant Anand today said the arrested were 28-year-old and 16-year-old sisters and 12-year-old brother of Anita Besra (32).
On September 4, Anita's body bearing injury marks on the head and hands was found in a nullah and her father had registered a case against unknown persons under IPC section 302, Anand said.
Based on evidences gathered from neighbours at Sidgora here, police arrested the woman's younger sister, who confessed to her crime during interrogation.
The siblings felt their parents cared more for their elder sister, who was allowed to control their home and family funds. They attacked her while she was praying and while the two sisters pinned her down, the brother hit her with a hammer on the head, which caused her death, police said.
After committing the crime, the younger sister covered the body with a tarpaulin and concealed it on the roof. Around 3.30 AM the next morning the siblings dumped it in a nearby nullah, Anand added.
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