make your stacked chart with three spaces per month
One for calls, one for defects and one blank. Put the month lable just in
the defect section.

"Sarath GS" wrote:

I would like to create two separate stacked column graphs together (but not
one on top) in one chart, example : the severity (critical, major, minor) of
Calls and severity of defects should be shown two separate stacked columns as
month wise (time line as X-axis) in a single chart.
The data is like this:
-------------------------------------------
Critical Major Minor
Open calls 5 6 7
Closed calls 3 5 6
-------
Open Defects 4 3 4
Closed Defects 5 4 8
----------------------------------------------
Help me out this, this solution will really reduce my report size.

Regards,
Sarath.