In the latest of a series of incidents, a young Indian woman used her smartphone to shoot video of a man sitting behind her on an IndiGo airline flight who tried to grope her between the seats. She filmed her rebuke of him in front of the other passengers.
               
The video, posted on YouTube this week, went viral, adding to growing anger over gender violence in the world's second most populous country where women are frequently sexually harassed in public and on transportation.
               
The trend to name-and-shame sex offenders comes after the gang-rape and murder of a 23-year-old woman on a bus in Delhi in 2012. The incident sparked public protests and led to a national debate about the security of women - encouraging victims once embarrassed to come forward to use smartphones to expose perpetrators.
               
Interest in safety apps with SOS buttons to alert contacts and websites to report sexual harassment has surged in the past year or so as more women challenge the age-old patriarchal attitudes in India that view women as lower status than men.
                             
There were 309,546 crimes against women reported to the police in 2013, up from 244,270 the previous year, according to the National Crime Records Bureau. These include rape, kidnapping, sexual harassment and molestation.