Groundwater Modeling has become an essential tool for groundwater management and education. It is essential to have a thorough understanding of complex processes viz., physical, chemical and/or biological occurring in the system for groundwater assessment and management. To understand these complexities groundwater model plays an important role. Groundwater models are simplified, conceptual representations of a part of the hydrologic cycle. They are primarily used for hydrologic prediction (hydraulic head, flow rates and solute concentration) and for understanding hydrologic processes (contaminant migration, solute transport etc.).