Explore advanced concepts in neutrino physics through this lecture on neutrino mass models. Delve into the intricacies of particle physics beyond the Standard Model, focusing on the neutrino sector and its implications for our understanding of the universe. Learn about the challenges in studying these elusive particles, their oscillation patterns, and the open questions surrounding their nature. Examine various phenomenological models inspired by neutrino masses and their potential to explain observed phenomena. Gain insights from renowned expert Srubabati Goswami in this 55-minute session, part of the comprehensive program "Understanding the Universe Through Neutrinos" organized by the International Centre for Theoretical Sciences.