The regular process without harming the productivity of future generation and satisfy the need of the present generation is known as sustainable economic development. This concept stresses the role of the environment as capital that, if exhausted, cannot be replaced. It requires preservation of human capital, physical capital and natural capital. The main features of sustainable economic development are: Reduction in pollution, quality of life of future generation should not reduce, efficient use of natural resources. United Nations Conference on Environment and Development (UNCED) defined sustainable development as ‘Development that meets the need of the present generation without compromising the ability of the future generations to meet their own needs.’
