Amid a raging debate on the sedition law, President Pranab Mukherjee today said the Indian Penal Code (IPC) requires a thorough revision to meet the needs of the 21st century and changes are necessary in the "archaic" police system. Watch more videos: http://www.ndtv.com/video?yt Download the NDTV news app: https://play.google.com/store/apps/details?id=com.july.ndtv&referrer=utm_source%3Dyoutubecards%26utm_medium%3Dcpc%26utm_campaign%3Dyoutube