• Nanostructured hard-carbons for soalr thermal conversion: From Fundamentals to Application, Joint Internation Workshop on Energy and Sustaiability(JIWES), JNCASR, Banglore, 8-9^th November 2023.
• What is hot in solar sustainability? International Conference on Molecular Matter-emerging direction for sustainability, ICMM, 16-18^th December 2023.
• Generation and Utilization of green-heat using phonon-engineered porous hard-carbon nanostructures, International Union of Materials research Society, IUMRS-ICA, Jodhpur 19-23^rd December 2022.
• Highly efficient solar-thermal conversion using nanostructured carbons, National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba, Japan. 29^th March, 2021.
• Nanostructured materials for point-of-care chemical and electrochemical sensors, IITB Sensors Workshop, 5^th March, 2021.
• Towards achieving selectivity and reliability in point-of-care sensors for water quality monitoring, Indo-US, Virtual Workshop on Smart Sensors and Analytics for Clean Water, ICCW-IIT Madras, 26^th Feb., 2021.
• What’s hot about Solar?, TEQIP Sponsored Online FDP on Functional Materials for Engineering Applications B.M. S. College of Engineering, 16^th Feb., 2021.
• “Springtime for nanomaterials: Finding flowers in forests”, CRSI Pune Chapter, 02nd Nov, 2020.
• “Engineering Chemistry and carbon nanomaterials”, Military Institute of Technology Pune, 28th October, 2020.
• “Walk through the world of nanocarbons: From forests to flowers”, School of Chemical and Biotechnology, SASTRA University, 10th October, 2020.
• “World of Nanocarbons: From forests to flowers”, Mar Ivanois College, Trivandrum, 23rd Sept, 2020.
• “Wearable energy storage devices”, Dept of Chemistry, Madanapalle Institute of Technology and Science, 18th July, 2020.
• “Solar-energy harvesting using nanostructured carbons”, Department of Chemistry, Sri Meenakshi College Chennai, 15th July, 2020
• “Designing, manipulating and probing of electrocatalytic interfaces for water splitting”, ChemCat Con 1.0, Department of Chemistry, IIT Gandhinagar, 12th July, 2020.
• “Emerging contaminants of water: Game of constant catch up?”, Department of Chemistry, IIT Bombay, 5th Jun, 2020.
• “Understanding and optimizing electrochemical interfaces in energy storage systems”, Invited talk at the Department of Chemistry, University of Pretoria, 5th June, 2020.
• “Solar-energy harvesting using nanostructured carbons”, Department of Chemistry, Vorhees College, Vellore, 3rd June, 2020
• “Energy, energy everywhere, How to harness it?”, Invited talk at V. O. Chidambaram College, Tamil Nadu, 21st May, 2020
• “Energy, energy everywhere, can we store it somewhere?” ACS Science Talks organized by American Chemical Society, 6th May, 2020
• “Nanostructured carbons: from catalytic supports to energy harvesting” BASF Innovation Campus, Mumbai, 27th Feb, 2020.
• “Nanostructured materials for highly efficient solar-thermal conversion and rapid water evaporation”, NEEHCON 2019, School of Materials Science and Engineering, NIT Calicut, 28th Dec, 2019
• “Novel nanostructured materials for H₂/O₂ production, energy storage & environmental remediation” Invited lecture at Conference on Advances in Catalysis for Energy and Environment (CACEE-2018), Tata Institute of Fundamental Research, Mumbai, 10^thJan, 2018.
• “Feynman’s dream, today’s reality” Invited talk at DBT star college lecture series, NES Ratnam College of Arts, Science and COmmerce, Mumbai 9^th Jan, 2018.
• “From Water Purification to Wearable Energy Storage Using Nanocarbons” Invited talk at Nanyang Technological University-IITB Mini Symposium, Mumbai, 8^th Jan, 2018.
• “Fundamental of Solid-state chemistry and Kinetic theory of gases” Inservice course, 2017 held by Kendriya Vidyalaya Sangatan on 25^th Dec, 2017.
• “Frugal science, exotic materials and global applications” Invited Talk at INUP workshop, IIT Bombay 29^th Nov, 2017.
• RSC Salters Chemistry camp was a great success.
• “Frugal science, exotic materials and global applications” Invited Talk at Centre for Nano and Materials Science, Jain University, Bengaluru, 31^st August, 2017″.
• “Thermally-driven nanoparticle assemblies as high-performing surface-enhanced-Raman-scattering substrates”, Institute Seminar at S. N. Bose National Centre for Basic Sciences, Kolkata, 8^th June, 2017″.
• “Fundamentals of electrochemistry”, Inservice course for Chemistry 2017 held by Kendriya Vidyalaya Sangatan on 27^th May, 2017.”
• “Engineering Chemistry and Carbon nanomaterials”, Faculty development programme in Applied Sciences, Zeal College of Engineering and Research, Pune, 2^nd June, 2017″.
• “Devices without lithography”, INUP familiriazation workshop on Nanolithographic fabrication, organized by Center for Excellence in Nanoelectronics, 22^nd May, 2017.
• “Gas-phase, parts-per-billion level detection of TNT in ambient conditions using Soret colloids as SERS platforms”, Integrated Chemie Conference” on “Current Research Perspective and Advanced Concepts in Chemistry, Department of Chemistry, Sathya Sai Institute of Higher Learning, 11^th March, 2017.

• “Wearable, washable energy storage device by stitching of carbon nanotubes”, Chemistry department, IIT Bombay, 4^thMarch, 2017.
• “Wearable and washable energy storage devices : where water is good!!!” International conference on materials for sustainable future (ICMSF-2016) held at SASTRA University, Tanjore between 14-16th July,2016.”Humidity-driven wearable energy storage devices” at National Institute of Technology Triruchirappalli, 17th July, 2016.
• “Humidity propelled wearable energy storage materials using carbon nanotubes,” International Conference on Nanotechnology (IC-Nano 2016) Visvesvaraya Technological University, Muddenahalli, Bengaluru.

• “Pushing the boundaries of current-carrying-capacity of copper with carbon nanotubes” Second International Conference on Nanostructured Materials and Nanocomposites (ICNM 2014) Kottayam, Kerala 2014-12-20.
• “Thermal properties of carbon nanotube-copper composite: Towards efficient cooling of electronics,” International Union of Materials Research Societies – The IUMRS International conference in Asia 2014 Fukuoka, Japan 2014-08-26.
• “Exceptional current-carrying capacity of carbon nanotube-copper electrical conductor: pushing the boudaries for electronic conductors,” International Union of Materials Research Societies – The IUMRS International conference in Asia 2014,Fukuoka, Japan 2014-08-26.
• “There is plenty of room at the bottom” as the resource person for ” Refresher course in Chemistry” organised by Sivaji University, Kohlapur on 5th December, 2015.
• “Carbon nanotube based wearable energy sources and physiological sensors” at the 4th International Conference on Nanomaterials and Nanotechnology (ICANN 2015) organized in IIT-Guwahati between 8 – 11th Dec, 2015.
• “Fundamentals of impedance spectroscopy” at the workshop on Electrochemical techniques organised as part of 5th International Conference on Advances in Energy Research (ICAER)-2015 organised in IIT Bombay on 14th December, 2015.
• “Towards wearable energy devices and sensors integrated onto clothing,” Chemical Frontiers, 2015 Goa 2015-08-15.