CONTENTS: Foreward, Prologue, Editorial Note, 1. Introduction, 2. Regional Geology: Historical Framework: Lithostratigraphy, Tectonic Setting in Northwest Himalaya, Paleontological Studies-Indian Context, Magnetostratigraphy-Indian Context, 3. Lithostratigraphy: Lower Siwalik Subgroup, Middle Siwalik Subgroup, Upper Siwalik Subgroup, Photo interpretation of different Lithostratigraphic units of Siwalik Group: An Approach, 4. Biostratigraphy: Indian Context: Biostratigraphic Appraisal and Researchers Contributions, 5. Techtonics: Thrust/Faults, Folds, Joints/Fractues, Neotechonics, 6. Sstandard Reference Section: Siwalik Group: Lower Siwalik Subgroup, Middle Siwalik Subgroup, Upper Siwalik Subgroup, 7. Fluvial Architecture, Provenance andPalaeodepositional Environment: Facies association and its characteristic elements, Depositional Environment, Prolvenance Studies, Palaeodepositional Environment, Palaeogeography, 8. Siwalik Group: Concluding Remarks, Appendix I to III, Significant Locality Index, References, Plates.