Children of developing countries, by and large, have been working in different kinds of economic activities either on territorial (urban/rural) distribution or on sectoral (formal / informal and / or organized / unorganized) allocation basis. They used to work in manufacturing plants, small factories, metal and construction works. The inductive study is based on social survey aiming at unveiling the physical and mental discomforts of children involved in hazardous formal and/or informal economic sectors. Decisive examination of both primary and secondary data was made for in-depth analysis. Around 90% children under survey were suffering from different psycho-physical diseases while above half of them availed Medicaid and care from locally self-trained physicians who possessed no recognized knowledge of medical care. In addition, child workers are less-paid than those of adults. The study concluded that working at an early age causes problems of health and safety; and thereby get impeded their intellectual development and natural growth which causes severe negative consequences on economic potentials.