The incident took place yesterday when Asha M Hoge was returning home with her husband on a motorbike after attending the official flag hoisting function on Republic Day in Kunda village of Bhiwandi taluka, they said.
An armed group, including some women, intercepted them and attacked the duo with axe, iron rods, sticks and chilli powder, Police Incharge A B Nimbalkar of Ganeshpuri police station said.
The locals were angry on MSEB's action against alleged power thefts in the village, which the deputy sarpanch had brought to their notice, he said.
However no arrest has been made in this connection so far, police added.
The names of the alleged accused were given as Bhagwan Talke, Manohar B Hoge, Barku B Hoge, Arund Agiwale, Neeta M Hoge and Sula A Hoge.
The couple, who sustained injuries, was being treated at a local hospital and later discharged, police added.