Punjab, the name derived from the Persian words, Punj (five) and ab (water) was a land of five rivers which formed part of Indus Basin till 1947. After partition of the country, Indus water Treaty-1960 restricted India's rights of usage to only three Eastern rivers (Sutlej, Ravi and Beas), the three Western rivers (Indus, Chenab and Jhelum) were earmarked for exclusive usage of Pakistan.