A Pakistani national said to be an ISI spy has been arrested by the Ludhiana Police, in this industrial town on Thursday.On preliminary interrogation, the spy said that his name is Nizam Baksh and he is a resident of Multan, Pakistan. According to Ludhiana police sources, he was living on a fake name of Sandeep Singh in Shahkot village under Jalandhar District for some time. He also revealed that he lived at various places in Punjab for the last five years and is spying for the Pakistan’s Inter-Services Intelligence and had sent many important intelligence inputs to the agency. Some documents have been recovered from his possession by the police