A five-member Pakistani delegation has inspected a controversial hydro-electric dam project in Indian-administered Kashmir.
Pakistan's major rivers originate in India
After visiting the Baglihar dam site in Doda district, the leader of the delegation said his team would submit a report to the Pakistani government.
India says it is building the dam to provide badly-needed power to the part of Kashmir that it administers.
But Pakistan fears it will give India control of an important water supply.
Pakistan wants India to stop work on the dam on the Chenab river, arguing it breaches a shared-water treaty brokered by the World Bank.
In May, the World Bank appointed a neutral arbitrator in the dispute after a demand was made by Pakistan for an adjudicator.
Swiss professor Raymond Lafitte will try and settle the dispute. He is expected to visit the dam site by October.
Pakistan says the Baglihar dam will deprive its main agricultural region of vital irrigation - an allegation India denies.
The World Bank says that if Professor Lafitte fails to offer a solution acceptable to both sides, the bank has to set up a court of arbitration.
Professor Lafitte is a civil engineer and professor at the Swiss Federal Institute of Technology in Lausanne.
The World Bank is a signatory to the Indus Waters Treaty, which was signed in 1960 and includes the Chenab River.
The treaty divided the river systems between the two nations.
Pakistan depends heavily on water from rivers flowing from Indian-administered Kashmir and was ceded rights to the Indus, Chenab and Jhelum rivers in the treaty.
No date has yet been given for the professor to submit his findings.