Out of these, presently 609 persons are under preventive detentions which include 218 stone pelters.
Reddy also said that 194 cases have been registered in Jammu and Kashmir for breach of peace, since August 5.
Accusing the separatist Hurriyat and its activists of executing incidences of stone pelting in the Valley, he said: "Illegal money is being sent through hawala channels from across the border to finance terror related activities, stone pelting and attacks on security forces in Jammu and Kashmir."
"Investigation has revealed that various separatist organisations and activists which are part of Hurriyat have been behind the incidents of stone pelting in Kashmir valley and that the NIA has chargesheeted 18 persons in the terror funding cases so far," Reddy said.