The origination of the internet created an entire new experience for consumers regarding gathering information, comparing products or prices and the possibility of purchasing on the internet. Therefore consumer behaviour on the internet is an important factor for marketers. To predict consumer behaviour on the internet marketers need to understand how, where and why consumers behave online. This paper tries to analyse studies done by various researchers in order to explore what online channels consumers use when they are in a particular stage of the buying decision process (BDP). The study will create more understanding about why and how on-line consumers go through their buying decision process (BDP). It will be helpful in drawing a modified and more effective marketing policy.