Biotechnology is the umbrella term that covers various techniques to restore ecological balance. It stands on the under-standing of molecular basis of cell functions and our ability to alter cell functions to produce product required by the society. It also helps to degrade the wastes. The book has been divided in seventeen chapters. First chapter deals with an introduction to environmental biotechnology, followed by cleaner technologies, biotechnology for pollution abatement, Bioremediation, Phytoremediation, Biomineralisation, Bioaccumulation, Biomagnification, Bionsecticides, Bt insecticides, Neem insecticides, Biomonitoring, Spiderwort strategy, Biofertilizers, Compost, Vermicompost, and Green manure. The bulk of the book is formed by Chapter 4-8. It is very useful book, well written in concise, illustrative and innovative style making it easy for an average reader to be able to understand and enjoy it.