How can I take an input from client in Jasper report so that my chart generate a report according to that input

You need to design a report that receives parameters and reference those parameters in your chart/graph. If you're not familiar with parameters and/or charts/graphs, I recommend you start with some basic tutorials on report design and chart/graph design. There are many available online and through jaspersoft wikis/docs/tutorials etc. You can test out your design from end to end via jaspersoft studio report designer.

Once you get the design basics in place, then you could consider how you'll be getting your clients input. The standard approach is jasper server, but jasper reports can be directly integrated into web applications, and jasper server has a rest api that allows for even greater flexibility of systems integration.