Yes, I could see this table but the table is empty. Also it seems this table was introduced after upgrade as I don't see this table for other environments which are running on Pega version 7.x. Attaching the pega log during start up.
This issue is resolved now. The problem was at websphere level where the user id which was used to connect with data source did not have all the privileges and that's why it was unable to access these new tables introduced as part of Pega 8.2.1. Replacing the same with Admin user id has sorted out the issue.