Water covers approximately 70.9% of earth's surface and is a vital source for all known forms of life. The study highlights the pernicious elements present in water of Kali River. Various physico-chemical parameters, like Biological Oxygen Demand (BOD), Total Dissolved Solids (TDS), Total hardness, Chemical Oxygen Demand (COD), pH, Calcium, Magnesium, Chloride, and Sulphate were undertaken during present study. It has been found that Kharkhoda point is highly polluted causing severe water pollution as it has a contamination with BOD (90 mg/L), TDS (1036 mg/L), total hardness (418 mg/L), COD (420 mg/l), Ca (252 mg/L), Mg (218 mg/L), Cl (138 mg/L), Sulphate (120 mg/L) and pH (7.5) as compare to other three points of Kali river.. The entry point of the Kali Nadi in Meerut region that is Daurala, is least contaminated because none of industries are located in this area, only some of the waste is dumped into the river. Thus, the water from this area can be treated by some of the waste water treatment methods and can be used for irrigation purposes.

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