Aquifer Mapping Studies and Management Plan has been carried out in South West Garo Hills district, Meghalaya under National Aquifer Mapping and Management Plan (NAQUIM) program with an objective to know the different aquifer system prevailing in the study area, to decipher the vertical and lateral extend of the aquifer down to the depth of 300 m, its characteristic, quantity as well as quality so as to bring a complete sustainable and effective aquifer management plan for ground water resources development in the study area. These studies have been done through multi-disciplinary approach so as to achieve the said objectives. The total coverage area of aquifer mapping and management plan is 546 sq.km out of 822 sq.km of the district and is underlain by alluvium and semi-consolidated rock of Sandstone. Ground water occurs in the study area mainly in alluvium aquifer i.e. within the saturated intergranular pore spaces of unconsolidated sand and sandstone aquifer. The different hydrogeological data are generated through intensive field data collection and testing. The aquifers present in the district can be divided into a two aquifer system viz., first aquifer (shallow) and second aquifer (deeper). Shallow or first aquifer consists of alluvium and weathered residuum where ground water occurs under water table condition and is mainly developed by construction of dug wells, shallow tube wells or hand pump. The second aquifer is the deeper aquifer constitute of tertiary sandstone. Based on the study of litholog and analysis of depth of construction of dug wells and shallow tube wells, it is found that the first aquifer occur within 2 to 50 m bgl. Ground water in the second aquifer occurs under semi-confined condition upto the maximum depth of 300 m bgl.