This book put together the results of research done between the year 2015 and 2017 on "An Economic Analysis of System of Rice Intensification in Cauvery Delta Region Of Thiruvarur District" in the field of Natural Resource and Environmental Economics in Indian Agriculture. This book provides the positive and negative aspects of SRI and also compare economic level of SRI farmers over conventional farmers in Cauvery Delta Region. This book is not meant as a textbook, however, i hope this book will found useful for teaching and research purposes.