Today I again called UKVI & asked about my & wife's application status; They said my case has been escalated but now they don't see status of my application. Earlier they were able to see status as "Decision has been made" & but now they are unable to see it. As per their explanation, they can't see status for long hence after some days information will be deleted from their end. This is same with my wife's application too. (No information)
They said, I may get my passport by end of this week. But again no confirmation.
I really don't have any clue, what's going on...