The publication in your hands records the upcoming, operation, maintenance and other related aspects of the Internationally known Bhakra, Beas and Ranjit Sagar Dams ¿ the Modern Temples of Resurgent India. For the inputs for this publication the technical literature associated with these dams viz. Planning, Design and Construction Specifications; Operation and Maintenance Manuals; Technical Papers published and presented in various technical forums and seminars in India and abroad and recorded experiences of eminent Engineers who were associated with the work on these projects have been referred. The inputs of the authors based on their vast experience of remaining intensely associated with the construction, operation and maintenance aspects of these projects throughout their professional careers have further added to the richness on the content matter. The result is in form of present volume as a rich repertoire of an insight into historic events, nuances of engineering, technical skills required and used to carryout works of mammoth proportions and the prosperity ushered in Northern India due to accomplishment of Bhakra, Beas and Ranjit Sagar dams.