In a major breakthrough, sleuths of Anti-Terrorist Squad (ATS) nabbed a Inter-Services Intelligence (ISI) agent along with an aide from Faizabad on Wednesday. The two were taken to unknown destination for interrogation. Inspector General (ATS), Aseem Arun said on Wednesday that the ISI agent identified as Aftab Ali if from Khawaspura of Faizabad and was arrested while another person was detained for quizzing. The arrests were made by a joint team of UP ATS, Military Intelligence and UP Intelligence Wing and more arrests were said to be on the cards soon. Arun claimed that Aftab had recently undergone training in Pakistan and was in touch with several officials of Pakistan High Commissionin India.