Pakistan Gurudwara Prabandhak committee secretary Gopal Singh Chawla, a pro-Khalistan leader, who is also a close aide of Jamaat ud Dawa chief Hafiz Saeed, is not only a Khalistani leader but also an informer and recruiter for Pakistan's spy agency ISI.

Pakistan spy Harpal Singh Pala, a former IAF official's son who was arrested in Jalandhar on Sunday, revealed during interrogation that it was Gopal Singh Chawla who radicalised him and recruited him as an agent of the ISI's espionage network.

Police officials said Harpal Singh Pala is the son of former IAF airman Bahadur Singh who hailed from Jalandhar. After his father died, the Pala's mother was employed as a cook by the IAF, who later retired and died. The family lived inside the Air Force Station. The accused spy was running a dairy at the nearby Bhatija village.

Pala was impressed with Gopal Singh Chawla and had sent him a Facebook friend request. The two soon started chatting on Facebook and Chawla also share his mobile number. They started chatting on WhatsApp.

Harpal Singh Pala told police that when he told Chawla that his father was an airman, he asked him to get secret information from the Air Force station and was also promised adequate compensation.

Interestingly, one day when internet services were down, Harpal Singh Pala made a mistake of calling Chawla on his mobile phone.

As intelligence agencies had already put the mobile phones being used to call people in Pakistan under surveillance, Harpal Singh Pala's call was also traced and his activities came on the radar of security agencies.

Investigations revealed that Pala was involved in anti-national activities. He is believed to have shared sensitive information to Chawla who is running a spy network.

Harpal Singh Pala was also in touch with some dreaded Khalistani terrorists, including Khalistan Zindabad Force Chief Ranjit Singh Neeta, Paramjit Singh Panjwad besides other terrorists who live in foreign countries, including Kulwant Singh Mathura and Preet Kamal Grewal among others.

The accused spy has been remanded to three day police custody. His remand is likely to throw more light on Chawla's spy network.