The incident took place on Sunday when the victim was travelling in a car along with some villagers, in Pacchapur village in Bhiwandi tehsil, a Thane police spokesperson said.
As per the complaint filed on Sunday night, the mob stopped the car after which they pulled the victim out, attacked her with weapons and stripped her, he said, adding the other villagers present in the car were beaten too.
A case was registered under relevant sections of Indian Penal Code against over 40 persons, including some women, at the Padgha police station, he said.
Twenty of them were apprehended since last night till Monday afternoon, the officer added. Investigations are underway, the police said.
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