Symantec Management Server

I have one symantec Management Server at primary location (Hyderabad) and I have installed site servers in Delhi, Bangalore and Pune. We have installed 50 machines in each location. All the 150 machines are reporting to primary location (Hyderabad). However, when we look at Delhi location, it shows Delhi machines as well as other 2 location machines (pune and bangalore) and the same is reflecting when we check other locations also (In pune location it shows bangalore and delhi machines and In bangalore it shows Pune and Delhi machines. 

But we want the respective locations to show its machines (50 each) and all 3 location machines should be reflected in primary server. Please assist.