"Used (waste) water – A resource: Closing the water and nutrient loops"; The CRISP Conclave 2023; Bangalore, 19 May 2023.
"Hybrid processes for the removal of organic micropollutants" at the Indo-German workshop titled "Securing sustainable treatment for drinking water production and water recycling with focus on anionic contaminants" at Hamburg University of Technology (Hamburg, Germany), 20-22 July 2022.
"Routine Wastewater Quality Parameters: Principle, Analysis and Interpretation"; Training & Capacity Building Prorgamme on Effective Water Management; Ahmedabad Municipal Corporation; 17 June 2022.
Keynote lecture: "Improved technologies for ammonia removal from landfill leachates"; International Felicitation conference on 'Environmentally Benign Processes, Products and Materials for Sustainable Ecosystem' (EBPPM 2021); Department of Chemical Engineering, National Institute of Technology Tiruchirappalli (NIT Trichy); 19-20 November 2021 (online).
Guest lecture: “Landfill leachate treatment"; AICTE sponsored Faculty Development Programme on ‘Environmental and Sustainable Chemical Engineering' (ESCE); Department of Chemical Engineering, Pondicherry Engineering College; 23 December 2020 (online).
Guest lecture: "Fixed-bed biofilm reactor: a robust, reliable and compact technology for nitrification of wastewaters. A high-strength saline landfill leachate as a case study"; Webinar on Integrated Approach for Sustainable Environment; CSIR-National Environmental Engineering Research Institute (NEERI), Nagpur; 28 February 2022 - National Science Day (online).
Guest lecture: "Chemical Engineering: Perspectives, Higher Studies & Research Opportunities"; IIChE NIT Trichy Student Chapter, National Institute of Technology Tiruchirappalli ; 25 February 2022 (online).