This helps. Thank you @DEBAL_DAS 

@Jörg_Hoh Thanks for the information provided.

@DEBAL_DAS Thanks for your time and effort, this suggestion was indeed provided by Adobe Day care team for one of our tickets. But we couldn't find any documentation related to it in helpX or other blogs.So wanted to understand this feature what they suggested. We have also replied back to them with...

What is the use of putting your Replication Agent to maintenanceMode=true while certain activities like Asset Moves are running on your AEM server?What exactly does the maitenanceMode=true do?@Jörg_Hoh @arunpatidar Have you come across usage of this property?