In Assam, a special CBI court in Guwahati today convicted 15 persons in connection with the 2008 serial bomb blasts. Nearly 90 people were killed in the blasts. <br />''  <br />'' Those convicted include the Chief of the banned outfit National Democratic Front of Bodoland, NDFB Ranjan Daimary. The quantum of punishment will be pronounced on Wednesday.<br />''  <br />'' <br />