Groundwater is being heavily exploited unchecked with the result that in large areas over exploitation is taking places well as poor quality groundwater is causing soil salinity and which disturb the cropping pattern. A study to evaluate an irrigation system in the cotton-wheat zone of Pakistan, before and after the watercourse lining was conducted. The primary data use for the study was the satellite images. study employed an index-based approach of using GIS with field data. NIR and TIR spectral bands proved to be most effective as this combination helped easy detection of salt affected...