India, Oct. 13 -- A 20-year-old woman and her mother have been arrested for allegedly killing the woman's elderly grandmother with an axe and disposing of the body in Uttar Pradesh's Gorakhpur, police said on Monday.

According to police, the incident took place on September 26 in Buidharpur village of Gorakhpur, under the jurisdiction of PP Ganj Police Station, PTI news agency reported.

The accused, identified as 20-year old Khushi Kumari, is the daughter of Uttara Devi from her first marriage in West Bengal.

Police said Khushi's grandmother, Uttara Devi's 80-year-old mother-in-law, often mistreated her and referred to her as "Bengalin" in a derogatory manner due to her origins.

On the night of September 26, Khushi allegedly attacked ...