Invited talks:

6. Invited lecture on “Nanotechnology – a tool for Enhanced Raman Spectroscopy" in Online faculty development program on  on Novel materials under AICTE ATAL sponsorship, Government college of engineering, Thanjavur, 17-21 August, 2020.
5. Invited lecture on “Plasmon-assisted Raman spectroscopy" in Online faculty development programme on spectroscopic techniques under DBT star college scheme, Jamal Mohamed College, Trichy during 03-05 August 2020.

4. Invited lecture on “Implantable Biosensors” motivation training programme under JIGYASA, CSIR-CECRI, Karaikudi during January 06-09, 2020.

3. Invited lecture on “Multifunctional Carbon Nanostructures”, MSE-392, KAUST, Saudi Arabia, 07 February 2018.

2. Invited lecture on “Ionic liquid functionalized multifunctional carbon nanostructures”, MSE-392, KAUST, Saudi Arabia, 10 March 2016

1. Invited talk on “Nanotechnology in Carbon Dioxide Capture and Conversion” in workshop on, "Carbon Dioxide Storage, Sequestration and Utilization" at St. Joseph's College of Engineering, Chennai, 24 August 2013.