The woman was allegedly raped by the four men inside the tempo before they gouged out her eyes, injured her on the head and neck, they said.
The locals saw the accused throwing the injured woman out of the tempo, about 50 metres away from Boginadi police station on the National Highway following which they informed the police which admitted her to a local hospital.
The woman was later taken to the Gauhati Medical College Hospital where she succumbed to her wounds.
Women's organisations and locals blocked the National Highway 52 on Monday with her body and condemned the incident, demanding justice for the woman and arrest of the culprits.
On the district administration officials assuring them to nab the culprits, the protesters withdrew their blockade on the road, which had disrupted traffic movement to and from Arunachal Pradesh for about two hours.
Meanwhile, police has picked up two persons for questioning in this connection.