Heavy metalsviz Pb (Lead), Fe (Iron), Cr (Chromium), Cd (Cadmium), Cu (Copper) and Ni (Nickel) were analysed in the three highly consumed fish S. sarwari, L. calbasu, C. carpio at T.S link canal (comes from Trimmu Head works to Sidhnai Head works, feed by River Chanab) . The water of the River Chanab is polluted due to industrial revolution around it which affects aquatic life. Due to the release of unprocessed waste water into the Chanab River by the districts and industries settled along the River Chanab consequent the pollution in rivers water and also affect its aquatic life. The results revealed that the temperature was 17.31?0.26 in winter and 23.26?0.71 in summer season. Dissolved Oxygen (DO) was 3.14?0.41 in winter and 4.82?0.65 in summer. The pH value in winter was 6.42?0.04 and 7.81?0.02 in summer Carbon Dioxide (CO2) level was low in winter and high in summer.BOD and DO are contrary to each other.Further, heavy metals concentration in water were in order of Fe>Cr>Pb>Cd>Ni>Cu and Fe>Cr>Pb>Cd>Ni>Cu in bank and main stream water in winter and summer seasons respectively. Heavy metals trend in sediments was Fe>Pb>Cr>Cd>Ni>Cu and Fe>Pb>Cr>Cd>Ni>Cu in bank and main stream in winter and summer season respectively. The accumulation trend of heavy metals in fish?s organs was (S. sarwari ) Gills> Liver> Kidneys> Muscles and fish L.calbasu has accumulation trend Liver> Gills> Kidneys> Muscles, whilethe fish C.carpio accumulation trend was Liver> Gills> Kidneys> Muscles during summer season. The accumulation trend in fish organs is slightly different in both seasons.