The Delhi Police Crime Branch on Tuesday arrested a former Indian Air Force (IAF) officer in Bhatinda, Punjab, for allegedly spying for Pakistan's spy agency Inter-Services Intelligence (ISI).

The accused, identified as Ranjit Singh, was a non-commissioned officer posted at Bathinda Air Force station as Leading aircraftman. He was to be produced before a Patiala House court later on Tuesday.

"Was monitoring activities of Airman Ranjit,was dismissed from service and handed over to police yesterday, (sic)" ANI quoted IAF sources as saying.

Singh had allegedly passed information to a woman who had honey-trapped him to provide sensitive documents pertaining to IAF. He came in contact with the woman on social media, NDTV reported. 

The officer was being monitored for three months, during which he leaked information about airfields to a woman in Jammu, according to NDTV sources.

The Indian security forces have so far arrested six people in connection with the alleged espionage racket.

A joint team of the Rajasthan and Uttar Pradesh Anti-Terrorism Squad (ATS) on Monday arrested a 58-year-old former Armyman in Jaisalmer for allegedly leaking confidential information pertaining to the Indian Army to the ISI.

On 9 December, Rajasthan CID had arrested two suspected ISI agents in the Rola village of Jodhpur, while in November, the Delhi Police had arrested a BSF soldier and a retired Indian Army havildar in connection with the alleged espionage racket.

The duo was arrested in Jammu & Kashmir for allegedly leaking information pertaining to India's national security to the ISI.