Abstract
Mass of the nucleus plays decissive role in all nuclear phenomena like stability, decay, reaction with other nuclei, and abundances of various elements in nature originating from nucleosynthesis in stellar evolution. Therefore mass formula has occupied the centre stage of nuclear physics research since early days. Historically, the first model of nucleus is the celebrated Bethe Weizsacker Mass Formule proposed in mid 1930s soon after the discovery of nucleus. This talk will delibrate on the physics foundation and the status of various mass formulae developed so for in nuclear physics. It will also specifically focus on the Infinite Nuclear Matter mass formula developed in IOP over the years.
