Technological advancements in this internet era, encompasses wide choice of online marketing strategies. Environmentally sustainable products or green products are of wide importance due to its efficiency in keeping the environment clean and pleasant. Green products are highly demanded by the consumers and their purchase intention through online mode is increasing day by day. Online marketing strategy is executed by web retailers for a wide range of green products. Immense studies have been done in analysing the decision of customers in demanding green products through online. The present review paper discusses more about the online customers demand, online privacy concern and the decision strategy in buying the green related products. In addition to this, the lead factors that influences customer’s purchase intention and the optimizing strategies for an efficient online purchase decision is too included.