Hi Kumar,
Yes, you can perform MTA through CJ2B in project planning board. Anyways, I will remove your confusion regarding MTA.
There is a proper transaction for it which is CNMT.
I have posted a following screen shot taken from my Development Client for you. Go through it once.
From the above graph, you can see that VERTICAL lines are showing dates of different milestones. In my case, I have not taken any historical curve. But I expect it must be coming in your case. So, now if you get a HORIZONTAL curve then it will suggest you that its dates have not changed over the course of time, that is, progress is being made on schedule. Conversely, an ascending curve indicates that a deadline has been delayed, whereas a descending curve shows that a milestone has been reached early compared to the original planning.
PRE-REQUISITES for MTA
1. To perform a milestone trend analysis. the projects that you want to analyze must contain milestones where the Trend analysis indicator is set or was set at early on the project. The Historical curve view of the milestone trend analysis shows the dates over time of the milestones, where the Trend analysis indicator is currently set. The Historical milestones view also displays milestone dates, but where the indicator is not currently set although it was set at an earlier time.
2. The second prerequisite for the milestone trend analysis is that you must create project versions to retain the dates of the milestones for the different times in the system. Note. in this case. that you must set the MTA relevant indicator for the project versions in order to ensure that they can be used for a milestone trend analysis.
I hope this may help you 
Regards,
Amit