Hello Md Aslam,
Unfortunately, this is all we can offer you on the matter as far as built-in functionality goes. However, you can try appending external labels dynamically to your jqxBarGauge like so: https://jsfiddle.net/Dimitar_jQWidgets/jk8t45g9/.
Best Regards,
Dimitar
jQWidgets team
http://www.jqwidgets.com/