In the present study an attempt has been made to determine the physico-chemical status of Harike lake located on the confluence of Satluj and Beas rivers.

Pollution of rivers first affects its physico-chemical quality; later on it systematically destroys the community disrupting the delicate food web. To assess the level of pollution of main rivers of Punjab, Sutlej and Beas, water quality indices have been calculated with the help of sixteen water quality physico-chemical parameters using WHO/EPA water quality standards.