Abstract—Yamuna is the major tributary of River Ganges serving almost 57 million people across its travelling length in India. Apart from being mythologically associated with the Hindus, it caters to diverse needs of the people across such as power generation, domestic water supply, irrigation, fish farming and more. With such great dependence on its waters, the after effects are many. Increasing pollution of the river has been alarming since quite a long time in India. Over the last few years, the water quality of Yamuna has deteriorated despite huge expenditure and efforts put by the government. One of the potent effects of the polluted water is occurrence of heavy metals. Which are harmful and toxic at high concentrations affecting aquatic animals as well as human life. The article reviews the present status of Yamuna and describes the major studies across this topic. Emphasis has been laid on the waters entering Delhi region and the control exerted by the Government. The water quality of Yamuna at the point of its entry into Delhi fits to water quality standards in terms of Dissolved Oxygen (DO) and Bio-chemical Oxygen Demand (BOD). However, during its exit, the water quality becomes unfit for any purpose.