As Nepal builds barrages to divert more water for irrigation during the dry season preceding the summer monsoon, there is less for downstream users in Bangladesh and India's Bihar and Uttar Pradesh states. The best solution could be building large upstream reservoirs, to capture and store surplus flows during the summer monsoon as well as providing flood control benefits to Bangladesh and India. Then water-sharing agreements could allocate a portion of the stored water to be left to flow into India during the following dry season.