This book contains the results and findings of advanced research carried out in a pilot area with a thorough investigation of the structure and functioning of the aquifer in a granitic formation. The various chapters start from a very general scenario of the water resources management, then follows a technical contribution on the hard rock aquifer system, its characterization, theoretical portion of its properties and behaviour. Subsequently a brief description of various experiences of studying hard rock aquifers globally has been included. The rest of the book very systematically includes the geophysical, geological and remote sensing applications to conceptualize such an aquifer system. A major part covers the advanced techniques of geostatistics and aquifer modeling right from the basics demonstrated by suitable case studies. Finally a few examples have been included on the hard rock aquifers from the extreme north and also from the south of India with case studies to complete the matter.