The major group of zooplankton observed during study period was Cladocera, Rotifera, Protozoa, Nematoda, Aostraca, Schizopyrenida and Copepoda (Figure 3). Quantified data related to species diversity showed two species of Cladocera, eight species of Protozoa, nine species of Rotifera, three species of Copepoda and only one species of Nematode, Aostraca and Schizopyrenida in assessment area. Quantified data was as follows