The river Narmada velly is one of the major hot spot for aquabiodiversity in India. The presented study is conducted on the variable account of Phytoplankton. A total 30 algal taxa belonging to 16 genera have been collected and identified. Chlorophyceae was the most diverse class having 12 taxa followed by Bacillariophyceae with 7 taxas. The algal communities correlated with water pollution. The algal community correlated with water pollution. The total biodiversity shows a drastic decrement caused by globalization and human interference in the nature. Present studies examined the potential for algal bio-monitoring across a gradient of agriculturally impacted streams.