Health is one of the most significant factors of human development which influences economic development. In both developed and developing countries, increasing access to safe drinking water, sanitation, and good hygiene are fundamental to health, survival, growth, and development. However, these basic necessities are still a luxury for many of the world’s poor people. No doubt in the last two decades, there have been improvements in the access of drinking water and sanitation facilities in the developed as well as in the developing countries of the world. However, there are still an estimated 2.2 billion people in the world who do not have access to safe drinking water. More than half of the global population does not have access to safe sanitation and hygiene facilities. Lack of safe drinking water and sanitation facilities leads to not only poor health and lower education achievement, but it also affects the living standards of people, per capita earnings, GDP growth, and overall development of any economy. The world population is also predicted to grow from 6.9 billion in 2010 to 8.3 billion in 2030 and to 9.1 billion in 2050. This clearly points towards the need for an increase in access to water, sanitation, and hygiene facilities at the global level. Indeed, rising demand for these facilities is a matter of grave concern throughout the world, particularly in developing countries. Without addressing all these issues country cannot break the vicious cycle of poverty and enable sustainable development. There is hardly any comprehensive empirical study dealing with all the aspects of WASH services.