Social marketing is a carefully planned, long-term approach to changing human behavior. It is the use of commercial marketing principles and techniques to improve the welfare of people and the physical, social and economic environment in which they live. There are four basic principles of commercial marketing. They are referred to as the "4 Ps". They belongs to product, price, place and promotion same as commercial marketing. In social marketing there is one more additional ‘P’ which referred to ‘Policy’. Social marketing doesn’t success every time. If major populations do not accept the change or if they don’t think the change is benefit for them, at that time social marketing campaign will not be worthy. In such kind of situations it will be better to bring those changes which can connect with majority of populations and accepted by them. Social marketing and commercial marketing are different in their approaches. Social marketing is more focused on social and consumer profit, whereas commercial marketing gives more emphasis on marketer profit. Social marketing try to meet with the need of majority of population on the other hand commercial marketing creates need within the population. Social marketing needs high involvement and commitment of consumer.