The accused duo have been identified as Kafaitullah Khan alias Master Raja (44), a resident of Rajouri district in Jammu and Kashmir, and BSF head constable Abdul Rasheed, posted at the intelligence wing of Border Security Force in the same district, Joint Commissioner of Police (Crime) Ravindra Yadav said.
"Khan is a handler of Pakistan Intelligence Operative (PIO) and Rasheed was one of his chief sources. The espionage racket run by them is supported by Pakistan's ISI," Yadav said, adding that the duo has been arrested under various provisions of IPC and Official Secrets Act.
On Thursday, Khan had boarded a train from Jammu and was about to leave for Bhopal. He was apprehended by a police team at New Delhi railway station and "documents having implication on national security" were recovered from his possession, said the senior official.