In copper plans, the highly corrosive sulphuric acid (H2SO4) is pumped out using very expensive pumps that, as per OEMs rules, are to be changed in every 365 days. Hindalco collected data about these pumps – the vol. of H2SO4 it pumped out and its condition when it was replaced. All these data points were fed to an analytical model and the data scientists found that the pump could be used for 500 days. This reduced machinery costs and 15 yearly downtimes to 7.