This application was build for the users of Adani PNG Gas connection for home or business. It allows you to know the current consumption and charges when you want,without waiting for the bill to come. User can track the amount of gas usage and likewise optimize the usage. It has the simple user interface in which you only need to give the meter readings and it gives you the estimation of the bill. You can also set your gas rates, VAT %, Additional Tax % and save the estimated bill. Analysis of the past save bills (history) can be done in graphical form through charts.