Hi @jitsinha ,
The answer for the below post,might be the one,you are looking for
http://answers.splunk.com/answers/7556/timechart-how-do-i-combine-these-two-charts-into-one.html?wb4...
Instead of grouping, place them in seperate panels and than a little css trick can help you remove border between the charts . and they will look as iff they are in same row and in single panel.
any pointer from css front??