The 35-year-old nurse, working at a private nursing home, was returning home after buying vegetables from the market.
The three allegedly assaulted her and dragged her to an isolated place where they gangraped her last night, Superintendent of Police A K Satyarthi said today.
The victim was admitted to a hospital for medical tests, he said.
The three alleged rapists have been arrested, Satyarthi said.
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