The Central Vigilance Commission filed its preliminary probe report relating to CBI director Alok Kumar Verma in sealed cover in the Supreme Court today. Another report was submitted in the Supreme Court by interim CBI director M Nageswar Rao. Rao filed a sealed-cover report on the decisions taken by him since October 23 as head of agency. Former Supreme Court judge AK Patnaik supervised CVC inquiry. The CVC probe was completed on November 10.