The incident occurred when Dhankunwar Bai scolded Vinod Chauhan (34) who had abused her son Rambeer Jatav after the latter refused to give him a matchbox for lighting a cigarette.
According to police, Chauhan, his mother Hussainpurwaili (60), her two daughters Lohari (28) and Rani (30) attacked the elderly woman with wooden rods in their house.
Police have filed a case of murder. All the accused are absconding, the officer said.
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