ABSTRACT
Over the period, it is seen that improper handling of contractual issues pertain to geotechnical problems is the main bottleneck. It is generally accepted that geological uncertainties and associated construction difficulties leads to significant delay in project commissioning incurring extra cost and time overrun, however, the required technical skills to overcome these hurdles are yet to be achieved. By adopting a pragmatic approach right from the planning stage, adequate geological investigations and their interpretation during project report preparation, identification of probable geological risks and making adequate
1 INTRODUCTION
Hydropower projects are the best source of power generation due to pollution free and renewable nature, being responsive to quick load changes and economical. It has less capital cost (1/3rd of thermal), highly efficiency (90% for hydro, 35% for thermal and 32% for gas turbines) without contributing to green house effect etc and many other multipurpose benefits.
