An employee of the Halwara Air Force station, identified as Ram Singh, was arrested by Punjab Police for allegedly working for Pakistan’s intelligence agency Inter-Services Intelligence (ISI), from Sudhar area in Ludhiana District of the State on December 31, reports The Tribune. “Ram Singh, an employee of Halwara Air Force station, has been booked and arrested for allegedly working for Pakistan’s ISI, in the Sudhar area of Ludhiana, Punjab. Two of his associates are on the run,” said Senior Superintendent of Police (SSP) Charanjit Singh Sohal.