The present paper reports the zooplankton diversity in Nal Damayanti (Simbhora) dam in Morshi Taluka of Amravati district, Maharastra State. Nal-Damayanti reservoir constructed on river Wardha, having   an area of 1335 hectares and 9729 hectares of total catchment area. The samples were collected during October-2007 to March-2008. The sample analysis showed great diversity in zooplankton consisting 39 species belonging to five groups. Rotifera were dominant by contributing 21 species followed by Cladocera 11 sps., Copepoda by 5 sps., Protozoa by 5 sps. and Ostracoda by 3 sps.