Hello @muni2chandra84,
in case you have a multiple web application servers deployment, you need to ensure SASServer1_1 (BI) is started before anyone else, since it includes the basic core, the SAS Web Infrastructure Platform, which includes components such as the SAS Content Server, the SASLogon, and many others.
Besides this dependency, all the others you can start them afterwards. Of course, the more you connect at the same time, the more connections from the pool to SASServer1_1 they will take and will need to wait.