Green Marketing is a phenomenon which has developed a significant importance in the modern age and is seen as an important strategy for sustainable development. Consumers are becoming increasingly more concerned about the environment and various issues related to it at global level. In this paper main emphasis is made on concept, need, importance and challenges of Green Marketing. Data has to be collected from multiple sources such as books, journals, websites and newspapers to understand the importance of the subject. This paper aims at finding out what actually Green Marketing is and how a business can be more competitive by using Green Marketing Campaign to gain a competitive edge over others. It explores the main reasons of Green Marketing. This paper describes the status of Green Marketing in India, the future of Green Marketing and concludes that Green Marketing is something that will continuously grow in both practice and demand.