Popular Talk on National Science Day on 28.02.2022, “An Era of Radioactiove to Hydro active Green Energy to save Earth!!!” in GGS Indraprasth University.
CSIR Platinum Jubliee Celebration day lecture in AMPRI Bhopal on 11.04.2022 “The 21st Century’s Biggest Invention of Hydroelectric Cell Device to Produce Green & Clean Energy and A Brief About ISO 17025”.
Lecture in AdMet on 24/08/2022, “Challenges & Issues for 21st Century in Indian Context to Quality Standards Accreditation – A solution for problems or a fresh problem?”
Delivered a lecture in NTPC on “Hydrogen Economy Inevitable to Do Away Global Warming with the Usage of Hydroelectric Cell !” on 21/07/2021.
Chairman of the committee for Pondicherry University MHRD Feb 4- 5, 2020 for University Academic Audit to strengthen the research and teaching activities of the University including Sophisticated Facilities.
Member of the Apex committee, NPL Research Council, March 2020, to conduct true evaluation & monitoring to review all major projects progress of National Physical Laboratory.
Chaired Session in “National Conference on Nano/Bio-Technology (Nano BioTech-2019)” organized by Special Center for Nanoscience, JNU in collaboration with National Institute of Immunology, New Delhi held from 19th December to 21st December 2019 at Convention Center, JNU, New Delhi.
Chief Guest in the conference on Nanoscience & Instrumentation at NIT Kurukshetra on March 13, 2020.
UGC nominee in the Governing Council of G.Pulla Reddy Engg College (Autonomous) KURNOOL – 518 002, A.P.
Academic Council Member, Court of University, D.C.R. Univ. Sci. & Tech. Murthal, 2009- 2014.
President, Nano-Biotechnology Society IIT Mandi.
Avishkar, Monthly Science Magazine in Hindi Feb. 2017 by National Research Development Corporation (NRDC).
Hydroelectric Cell – A Green Energy Invention, in Invention Intelligence, Bi-monthly magazine, January-February 2017, Volume 52, Number 1, ISSN 0970-0056NRDC.
A green Energy Device Hydroelectric cell invention for masses” Kalindi College (University Of Delhi) Two Day National Seminar, Paradigm Shift Towards Empowerment of Women (NSSC-2017)” 3–4 February 2017.
Kotnala’s Cell: Generating Electricity from Water, Waves, vol. 2, issue 2, Jan 2017, Department of Physics, Ethiraj College for Women, University of Chennai.
Advisory member in several international and national conferences.
Chairman/expert member of different national level committees of DST, CSIR, DRDO, Solar Energy Centre, JNU, IITs, Universities & UPSC.
Guest of Honour, Dr. Kotnala addressed the problems of abnormal climate change, environmental pollution issues, and increasing effects of global warming in the International Virtual Workshop on “Renewable Energy and Storage Devices for Sustainable Development” (IWRESD), January 12th – 14th, 2021.
Geomagnetism: Established earth’s magnetic field measurement facility using single axis and tri-axial fluxgate magnetometers with a range: 100 µT-1000 µT, and uncertainty of 10-4.
After establishing a precision Magnetic Measurement lab at NPL, Dr. Kotnala established different methods of magnetic measurements at the international level with high precision. This unique facility has proven a big support to Indian industries and the trade sector for globally acceptable world-class standards on magnetism. It also led to precise geomagnetism and solid earth magnetism experimentations, conceived by Dr. Kotnala. He has been invited as a technical program member for the international conference on precision electromagnetic measurements CPEM 2010, South Korea.
Geomagnetism Experiment on Solar Eclipse Day: Experiments on Variations in Geomagnetism was conducted on Solar Eclipse Day, July 22, 2009, at National Physical Laboratory, New Delhi, India. This data is of paramount interest to telecommunication engineers, Geophysical Scientists, and atmospheric science researchers. Such measurements are very useful for navigation purposes, ionosphere communication for electromagnetic waves, earthquake precursor predictions etc. Dr. Kotnala was invited to Taiwan for a data comparison on the solar eclipse.
Established a new laboratory at NPL – National standards in magnetism and industrial metrology facilities besides advanced measurement techniques in magnetic materials. Apart from active research contributions in nanomagnetism and new magnetic materials, efforts have been taken to solve many industrial problems as well.
Electric dipole interaction in BiFeO3 –BaTiO3 multiferroic composite has been confirmed at the atomic level for the first time (PRL, 101, 2008) by meticulously planned experiments with BHU.
A prototype magnesium ferrite humidity sensor, low cost and highly humidity sensitive, based on resistance variation has been developed.
