Documentation on water quality based on seasonal distribution pattern of physic-chemical characteristics of the three major rivers flowing in Imphal, Manipur were carried out during July, 2011 to June, 2012. Three main seasons were classified based on the ombothermic information for ten years weather data of Imphal. Significant seasonal variations of the different parameters were observed and the study has a great value in terms of river ecosystem as well as water quality in different seasons.