The arrested handler for Pakistani spy agency Inter-Services Intelligence's (ISI) operatives has reportedly told investigators the ISI was blackmailing the BSF head constable and a few others involved in the espionage racket by tapping their phone conversations, forcing these men to work for them.

Kafaitullah Khan alias Master Raja, the handler, claimed he was instructed by the ISI to record all his conversations with BSF jawan Abdul Rasheed, a soldier in the Indian Army who has not been traced yet, and other officials at India's security wing.

Khan was the handler of Rasheed and a few others who have not been identified as yet.

Khan said the tapped conversations were then used to blackmail these men into providing information pertaining to India's national security. Khan added his conversations with Rasheed were used to blackmail him (Rasheed) into leaking Indian Army's war plan ORBAT (order of battle) to the ISI, according to The Times of India report.

The Intelligence Bureau has started a joint interrogation of both Khan and Rasheed after finding out that the ORBAT files have been leaked. Rasheed and others are believed to have leaked information about locations of IAF fighter jets and key Rashtriya Rifles (RR) units as well.

Khan reportedly talked about the blackmail after the Delhi Crime Branch recovered an audio CD from his house.

Rasheed has also talked of leaking information, about BSF and RR movements in the G-wing of Border Security Force, that helped ISI infiltrate its men inside India.

However, Joint Commissioner of Police (crime) Ravindra Yadav has not commented on the revelations.

Meanwhile, ACP KPS Malhotra has been sent to Jammu to arrest Rasheed's associates reportedly involved in the espionage racket busted by the crime branch of the Delhi Police last week.