The informal sector plays a significant role in Pakistan’s economy as well as in other developing countries. The role of the informal sector in solving the unemployment problem of Third World countries has become the focus of a conceptual and empirical debate in recent years. Most of the research takes a favourable view of this sector and suggests that it should be used as a policy instrument for the solution of the most pressing problems of developing countries, such as unemployment, poverty, income inequalities, etc. Before proceeding further, we will define the informal sector and differentiate it from the formal sector. There are various definitions, but the one given in an ILO report (1972) is generally considered the best. According to this report, informal sector activities are ways of doing things characterised by a heterogeneous array of economic activities with relative ease of entry, reliance on indigenous resources; temporary or variable structure and family ownership of enterprises, small scale of operation, labour intensive and adapted technology, skills acquired outside the formal school system, not depending on formal financial institutions for its credit needs; unregulated and unregistered units, and not observing fixed hours/days of operation.