Three persons, including an Inter Services Intelligence agent from Pakistan, were arrested by Madhya Pradesh Special Task force for allegedly passing on sensitive information about the Indian Army, a senior officer said on Sunday.

"Mohammed. Imran Warsi, the ISI agent hailing from Karachi, was arrested in Bhopal on Saturday with sensitive information regarding deployment, unit details and important phone numbers of the Indian Army," Inspector General (STF) Sanjeev Singh told reporters in Bhopal.

On information collected from him, police arrested two others -- Iqbal and Akhtar -- who were acting as his local contacts and supplying him sensitive information, Singh said.

Imran had been passing on sensitive information through e-mail and phone to his "handlers" in Pakistan and Dubai, from where he received the funding through Western Union Money Transfer, Singh said.

Information about the involvement of an army officer in leaking information has been collected from Imran during interrogation, but the matter was being further probed, he added.

The ISI agent, who was staying in Bhopal with his wife and two children, had managed to procure a ration card, PAN card and permanent resident certificate from Sagar, and had applied for an Indian passport, he added.

Picked by the Pakistani intelligence agency in 1995-96, Imran was trained and sent to Delhi by air in 2003. He got married to a woman from Kolkata, and had been staying at different places, including Srinagar [Images], Mumbai, Bangalore and Kolkata, the official said, adding teams had been sent to different cities to collect further details.

To a query, he said Imran's wife was being interrogated to confirm whether she was aware of his activities.