Thanks "adjustee" ! you were right they have send some body to join me !
Good_wait ! when I moved from NY to MN and changed address with VSC they did not raise any questions or concerns .
Then my case got transffered to Bloomington office.
But I beleive it was not because of address change but because VSC was waiting for my A-file from some INS office , and that office could not find my file , by the intervention of senator office , they moved my temporary file to local office. So i beleive it was because of lost file !
Hope you will get your approval without any RFE or transfer