Keynote Speaker CSIR-CBRI International Experts Lecture Series. 30 January 2025, Roorkee, Haridwar, India.

Keynote Speaker in the 4th Renewable and Sustainable Energies and Green Processes. 22-24 December 2024, Sousse, Tunisia.

Keynote Speaker in 21st International Conference on Sustainable Energy Technologies. 12-14 August 2024, Shanghai, China.

Keynote Speaker in International Conference on Design, Materials and Manufacturing Engineering for Sustainable Development (ICDMMESD 2024), Graphic Era (Deemed to be University), 09-10 May 2024, Uttarakhand, India.

Keynote Speaker in 6th International Conference on Alternative Fuels, Energy & Environment: Future and Challenges (ICAFEE 2023), 06-08 Oct 2023, Kayseri, Turkey.

Keynote Speaker in Renewable Energy Technologies for Sustainable Systems, Vellore Institute of Technology (VIT), 05 March 2023, Vellore, India.

Keynote Speaker in 7th Session of Global Sustainability Lecture Series, University Malaysia Pahang, 30 July 2022, Pahang, India.

Keynote Speaker in Third International Conference on Sustainable Energy Solutions for a Better Tomorrow, Vellore Institute of Technology (VIT), 23-24 July 2022, Chennai, India.

Keynote Speaker in Energy Positive Buildings & Sustainable Transport Workshop organised by University of Exeter, UK and VIT, India, 16-17 July 2021, Exeter, UK.

Keynote Speaker in Novel Solar Energy Applications for the Built Environment, GIAN Programme Organised in Maulana Azad National Institute of Technology, 26-30 November 2018, Bhopal, India.

Keynote Speaker in International Joint Conferences of International Conference on Industrial, Mechanical, Electrical, and Chemical Engineering (ICIMECE) & Annual Conference on Industrial and System Engineering (ACISE), 6-7 October 2016, Yogyakarta, Indonesia.