Entity - 2007-03-09

I have bar charts in my project which display currency values on top of the charts.

Currently it displays:100000   I want it to display:1,00,000
input : (100000)double value

I give as an input double value to the required cewolf api.My problem is that the values so displayeed on the charts are not comma seperated as to indicate currency value.
Please let me know how to resolve the same