In Uttar Pradesh, the Central Bureau of Investigation, CBI, team has arrested five persons allegedly using unfair means and impersonation in an examination conducted by the Staff Selection Commission. The CBI had conducted raids on Sunday at examination centres one each at Allahabad and Lucknow. Four persons have been arrested from Allahabad while one from Lucknow. Quoting official sources, AIR Allahabad correspondent reports that the CBI have taken them to Ghaziabad for further investigation and produce them before the special court.