The Nuwara Eliya Police and Army yesterday (06) raided a training centre maintained by the National Tawheed Jamath (NTJ) at Black Pool in Nuwara Eliya in Central province, reports Island. About 38 persons had been trained at this centre and Zahran Hashimi, who is considered the mastermind of the Easter Sunday bombings, too had trained here. The last rehearsals of Easter Sunday (April 21) bombings were held at this centre on April 17 and was supervised by Zahran, preliminary inquiries have revealed.