"A video of two sisters beating up three men, who were allegedly sexually harassing them on a moving bus in India, has gone viral on social media."

"The men started to abuse me and touch me. I told them 'if you touch me again, you'll get beaten up'. They called a friend on the phone and told him to 'come over because we have to beat up some girls.'"

She said they decided to take on the attackers when other passengers did not come to their help.

"No one came forward in the bus to help us. So we took out our belts in self-defence [and hit the men]. If only the other passengers had helped us, we would not have needed to retaliate in this way," she said.