New Delhi, Oct 08: CBI, which conducted raids against former Uttar Pradesh Chief Minister Mayawati, has also registered a case of possession of assets disproportionate today. The disproportionate assets case has been registered to probe her assets from April, 1995, to August 29, 2003, during which Mayawati not only held the office of Chief Minister but was also an MLA and a Member of Parliament, the sources said. Bureau Report