The main object of this book is to provide the knowledge to the poor marginal Rice growing farmers of West Bengal as Rice is the most important cereal crop in this state. But increasing in cost of cultivation in terms of fertilizer, pesticide as well as agriculture-labour the net profit gain of the poor rice growers are gradually decreasing. This book is providing the information regarding System of Rice Intensification (SRI) as an new alternative source of rice cultivation with increasing productivity and profit and minimizing the environmental hazard.