**7. Conclusion**

The biological and WQI index shows water quality was good at upstream rather than at downstream stations. The biotic index shows a clear variation throughout the sites. While the physicochemical index shows the same trend at site D and it shows fair water quality despite the biotic index is Poor. The biotic index is detailed and efficient while the individual can gather information on the spot, but physicochemical parameters are costly, laboratory intensive, and time-consuming. These two indexes can be used alternatively concerning the situation.
