According to the FIR filed with the Ratu police station, the family members woke up following the commotion but were scared at the sight of guns.
Rawani, who was a vendor of cosmetics, is survived by two wives and the police suspected family feud could be reason behind the incident.
A family member had on September 9 warned Rawani to leave the place following a threat to his life, the police said.
The torso was recovered and sent for post mortem.