Dear make it clear that on which level Sind is opposing Bhasha? As far as i know Mangla Dam is constructed over Jehlum River and Bhasha is proposed on Indus. So, from an agricultural point of view, Sindh is not directly affected by the dam over Jehlum. On the contrary, any Large Dam like that of Bhasha may curtail the water flow and ulimately the water resources required for the crops in Sindh. At the same time, the downstream water flow below KOTRI gets affected by the construction of large Reserviors on Indus.