River Ami belonging to Sant Kabirnagar, close to Gorakhpur in India originated from river Ghaghra and merges into the river Rapti, covering distance of about 250 km. The river starts from Ghaghra in more or less unpolluted form, but during its route it receives heavy amount of effluent from a paper factory. The effluent comes out through two drainage from this industry and it is dark coloured with unpleasant odour. Analysis of effluent of paper industries shows that it is as hot as 31oC, pH about 8.3, TDS 4384 mg/L, suspended solid 2832 mg/L, nitrate content 375 mg/L and so on. Study of presence of heavy metals is still in process. The effluent after merging in river Ami affects the water quality adversely. The river has vast coverage area; therefore, it is also assumed that it might be affecting the ground water quality in addition to the surface water quality and the quality of crops irrigated by its water.