A study of certain physicochemical properties of water in relation to phytoplankton diversity of Bordoibam Bilmukh Birds’ Sanctuary (IBA), Assam, North Eastern India, a wetland, has been carried out from August 2014 to July 2015. The entire wetland is divided into two zone i.e. core zone and buffer zone. Physicochemical properties of water like air and water temperature, free carbon dioxide (FCO2), dissolved oxygen (DO), total dissolved solids (TDS), transparency, nitrate (NO3), pH, chloride (Cl-) and current flow of water were analyzed. The primary objective of this study is to present a statistically meaningful water quality database of Bordoibam Bilmukh Birds’ sanctuary by employing normal distribution analysis for better management of wetland environment. These databases will also help in future to assess the quality of water of the wetland. The result of present study showed that hydrological properties exhibit non uniform distribution in the study areas of the wetland and indicate that it is a pollution free environment
