Abstract: The design of chemical products and processes that can reduce or eliminate the use and generation of hazardous substances is ‘Green Chemistry’ also called Sustainable chemistry. It applies to various branches of chemistry Including Industrial applications. Our environment needs to be protected from ever increasing chemical pollution. Chemical Processes and chemical industries are the biggest source of hazardous wastes, which are released in the air, water and land. Green chemistry is a series of reductions, which lead to the goal of triple bottom line benefits of economic, environmental and social improvements. Natural processes are ‘green’ while synthetic processes are ‘grey’. The need of the hour is to plan new synthetic routes, which are environment friendly. Ideal synthesis has proved to be really ‘ideal’ in this regard. We can think of green chemistry as directing us towards ‘Ideal Synthesis’. The ideal, green synthesis is a one step process that uses no reagent mass. Such a definition seems impossible yet the literature contains a number of very pleasing examples of extremely efficient synthetic protocols that produce complex molecules in comparatively trivial number of steps. Ideal Synthesis is safe, environmentally acceptable and atom efficient. Green chemistry, which involves ideal synthesis, is innovative, smart and ethically responsible. Also there is 100% yield and simple separation process with minimal input and additional outputs. In ideal synthesis, steps can be telescoped together, reducing the number of discrete stages in the process. CO₂ is often promoted as a green reaction medium. To achieve greener chemical processes ‘Clean Technologies’ are becoming the most widely acceptable goal of green technology. Thus it is quite obvious that this field promises a bright future.