The book is a lucid and well-structured compilation of general technical information on Geology, Geophysics, Reservoir and Production data of offshore sedimentary basins of India. The major hydrocarbon resource potential belongs to offshore sedimentary basins, hence it is quite pertinent to bring out a book on offshore sedimentary basins of India. The author dealt in detail the role of Plate tectonics and northward flight/movement of the Indian plate in the tectonic evolution of continental margins vis-a-vis the formation of Mesozoic Tertiary Pericratonic rift basins along the western and eastern offshore of India. Each offshore basin has been discussed with respect to its geological set up, tectonics, sedimentation history, depositional environment, geochemistry and petroleum habitat in a manner which gives an overall idea of the evolution of Petroleum System of each basin and further exploration thrust required. Hydrocarbon exploration is mainly focused in the new frontier areas i.e., Deep waters worldwide. The discoveries of offshore Bangladesh, Myanmar and Sumatra and comparison of their geological similarity with the offshore basins of India will surely generate special interest to the readers. The chapter on Gas Hydrates and the National Gas Hydrate Programme (NGHP) will evoke new interest in this Unconventional future hydrocarbon Resource. The book provides a comprehensive overview of the offshore Sedimentary Basins of India and their E & P activities which will be quite useful and act as a ready reckoner to the students and persons associated with upstream sector of the hydrocarbon industry.