The event Hands on Training in Modeling Fluid Flow Problems (HTMF-2023) is set to be the continuation of previous successful workshop was held at Department of Mathematics, School of Advanced Sciences, Vel- lore institute of Technology, Vellore during 20-26 June, 2022. In this edition, we will deliver various aspects of uid ow modeling. During this five day program, par- ticipants will explore a diverse range of topics, including the significance of Green's function, the intriguing world of special functions, the practical applications of Boundary Element Methods, the utilization of Finite Volume Methods (FVM) for shallow water modeling, the application of Asymptotic Methods in solving Par- tial Dierential Equation (PDE) problems within the realm of Fluid Mechanics, the power of Finite Element Methods (FEM) in tackling PDEs, and the utilization of the Eigenfunction Expansion Method.