The mother of a four-month-old baby, the victim has been identified as Beenu Kunwar, a "higher" caste woman who married Jitendra Darji (28) one-and-a-half year ago and was living in Indore, against the wishes of her family.
However, about four months ago, they came back to their village and settled there.
Last evening, her family members including her brother Khushal Singh, Lal Singh, Bahadur Singh and Jagdish Singh, along with their associate, Ravi attacked Jitendra when he was sitting in his shop with swords, Agar town's Sub Divisional Officer of Police (SDOP) Sandhya Rai told reporters.
Jitendra somehow rushed to his house to save himself, but they followed him there. When his wife and her father-in-law, Kanhaiya tried to save him, they too were attacked, causing grievous injuries, the SDOP said.
They were then rushed to Ujjain after first-aid, but Beenu succumbed to her injuries enroute, while the other two were later admitted to a hospital at Indore.
The accused have been absconding since then and efforts are on to nab them, the SDOP said.