| Title of Activity | Level of Event (International/ National/ Local) | Date (s) | Role | Venue |
| First CDBR-SSE workshop | National | 23-03-2007 to 24-03-2007 Â | Chairman | National Institute of Technology Tiruchirappalli -620015 |
| First Security Day workshop | National | 20-10-2008 | Chairman | National Institute of Technology Tiruchirappalli -620015 |
| Tenth CDBR-SSE workshop | National | 19-06-2009 to 20-06-2009 | Chairman | National Institute of Technology Tiruchirappalli -620015 |
| Second Security Day workshop | National | 09-10-2009 | Chairman | National Institute of Technology Tiruchirappalli -620015 |
| International Workshop on Big Data Analytics | International | 28-05-2020 to 30-05-2020 | Chairman | Online Platform |
| FDP on Big Data Computing | National | 23-11-2020 to 28-11-2020 | Chief Patron | Online Platform |
| International Virtual Workshop on Artificial Intelligence in the IoT Security Services | International | 14-12-2020 | Workshop Chair | Online Platform |
| ATAL FDP on Data Science | National | 01-07-2021 to 05-07-2021 | Coordinator | Online Platform |
| ATAL FDP on Advanced Data Science | National | 27-12-2021 to 31-12-2021 | Coordinator | Online Platform |
Invited Talks delivered: 100 Invited Talks have been delivered since 1999.