I want to send mail alerts (stats count) including time charts (time chart) to show the increase in delta count over a period of time, but not able to do it.
What do you mean by "not able to do it"? What exactly are you trying to do? How exactly are you trying to do it? How do the results not meet expectations?
It's uncommon for a search to contain both stats and timechart as one or the other usually is enough. Again, what exactly are you trying to do? What queries have you tried?