The open security community is a registered non-profit society and by far the largest security community in India with more than 2000 members. null has 7 chapters through out India – Pune, Bangalore, Mumbai, Hyderabad, Delhi, Chennai and Bhopal. The year 2012 marks a revolutionary change and unprecedented expansion in the way nullcon is organized. At nullcon we call upon security experts from around the world to deliver talks and workshops on the latest technology and techniques in the security world. The talks range from web hacking, security & hacking tools, smart phone hacking, cyber warfare to zero day vulnerabilities.
Source: https://thehackernews.com/2011/11/nullcon-goa-2012-international-security.html