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Terminalia chebula Retz. belongs to the family Combretaceae and is commonly known as Black myrobalan. In the present study fruits of Terminalia chebula were screened for potential antibacterial activity against Gram-negative bacterial strain Escherichia coli. The antibacterial activity was determined in aqueous, methanol, ethanol and acetone extracts by using disc diffusion ( Kirby-Bauer) method. The activity was carried out for different concentrations of plant extracts i.e. 100, 200 and 400 mg/ml and the relative solvents were used as control for respective extracts. Ciprofloxacin was used as positive control. The antibacterial activity of Terminalia chebula gave encouraging results.

Rivers in India have been regarded from time immemorial as sacred water bodies. The holy Ganges flowing in the most populated northern India is also declared unfit for even bathing. The present investigation has been carried out to monitor the water quality of river Ganga. Water samples were taken from five different sites and were checked out for microbiological study by evaluating SPC. Later on enumeration, isolation and identification of bacteria was done. Sensitivity tests were also carried out. The results obtained after performing the experiments indicates that the water in the tested stretch is unfit for both bathing and drinking purposes.