The case has striking parallels with that of the 23-year-old student whose gang-rape and murder on a bus led to protests across India.
Women's rights campaigners accused the police on Sunday of compounding the victim's suffering by disclosing her identity in breach of Indian rape law.
The 29-year-old mother of two was attacked after boarding a private bus whose driver offered to take her directly to her village on Friday night. She had been returning from her parents' home in Jagatpur, near Pathankot in Punjab.
The driver and his conductor allegedly diverted the bus, switched to a motorcycle and took the woman to a secluded spot where they and five other men gang-raped her.
The extent of her injuries is not known, but a medical examination has confirmed she was raped, according to the police.
Senior Superintendant of Police Ranjeet Singh said one of the accused was in hiding, while the other six had been arrested and had confessed to committing the crime.