Explore the fascinating world of neutrino-less double beta decay experiments in this comprehensive lecture by Vandana Nanal. Delve into the cutting-edge research aimed at understanding the nature of neutrinos and their potential role as Majorana particles. Learn about the experimental techniques, challenges, and latest developments in the field of neutrino physics. Gain insights into how these experiments contribute to our understanding of fundamental particle physics and the potential implications for the Standard Model. Discover the importance of neutrino-less double beta decay in addressing key questions about neutrino mass, particle-antiparticle symmetry, and the origins of matter in the universe.