
The men stopped the women's taxi on Monday evening, posing as anti-narcotics police, Umesh Gaonkar, district superintendent of police for North Goa, said.
The women and the taxi driver were taken to a flat where they were assaulted, Gaonkar told Reuters. The driver was released the next morning and helped police find the women and the men accused of attacking them.
Millions of Indians took to the streets in 2012 after a medical student was gang-raped and killed in New Delhi, to demand official action to reduce the number of assaults on women.
On June 2, an Indian woman had accused a driver contracted with online taxi company Uber Technologies of trying to sexually harass her after she hailed his cab, prompting the US-based firm to suspend the driver and launch an internal investigation.
Read: Indian woman accuses Uber driver of sexual harassment
Uber was banned in New Delhi in December after a woman passenger accused one of its drivers of rape.
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