It seems that Raju Kosuri was not naturalized but a permanent resident, while is wife was naturalized but because she came by this scheme she agreed to have her naturalization revoked because it was received fraudulently.

  https://www.google.co.il/amp/s/www.washingtonpost.com/amphtml/local/public-safety/va-man-behind-20-million-visa-fraud-faces-deportation-after-prison-sentence/2017/12/22/61007138-e729-11e7-833f-155031558ff4_story.html