A man who was part of a group that filmed themselves gang-raping two women and then posted the videos in WhatsApp has been arrested in Odisha. Subrata Sahu of Bhubaneshwar was arrested earlier this week by the CBI, said activist Sunitha Krishnan, who launched a campaign last month called "Shame The Rapist" to identify the men and have them punished after she was alerted to the heinous videos.