The Indus Waters Treaty is a water-distribution treaty between India and Pakistan, brokered by the World Bank (then the International Bank for Reconstruction and Development). The treaty was signed in Karachi on September 19, 1960 by Indian Prime Minister Jawaharlal Nehru and President of Pakistan Ayub Khan. According to this agreement, control over the three "eastern" rivers — the Beas, Ravi and Sutlej — was given to India and the three "western" rivers — the Indus, Chenab and Jhelum — to Pakistan. More controversial, however, were the provisions on how the waters were to be shared. Since Pakistan's rivers flow through India first, the treaty allowed India to use them for irrigation, transport and power generation, while laying down precise do's and don'ts for Indian building projects along the way. The treaty was a result of Pakistani fear that since the source rivers of the Indus basin were in India, it could potentially create droughts and famines in Pakistan, especially at times of war. Since the ratification of the treaty in 1960, India and Pakistan have not engaged in any water wars. Disagreements and disputes have been settled via legal procedures, provided for within the framework of the treaty. The treaty is considered to be one of the most successful watersharing endeavours in the world today even though analysts acknowledge the need to update certain technical specifications and expand the scope of the document to include climate change. As per the provisions in the treaty, India can use only 20% of the total water carried by the Indus river.