The 31st National Laser Symposium (NLS-31), sponsored by the Board of Research in Nuclear Sciences, Department of Atomic Energy, will be organized at the Indian Institute of Technology Kharagpur, from December 3 to 6, 2022. The NLS aims to create a platform for budding researchers in laser physics, technology and applications to interact and network with eminent scientists in the field. The symposium will have invited talks by leading experts, poster presentation of contributed papers, and thesis presentation by Ph.D. students. The symposium organizing committee cordially invites all scientists, engineers and students engaged in basic and applied research in the broad areas of laser physics, technology and applications to participate in the symposium.