Referring to his meeting with TTP leaders Hakimullah Mehsud, Maulana Wali-ur-Rehman Mehsud and Azam Tariq (Tariq is a senior TTP leader, who was a spokesman of the group before Ehsanullah was made the spokesperson), Ehsan wrote in his article published in Sunday Guardian: "Maulana Wali-ur-Rehman took a letter out of the envelope and gave it to me and told me to read it. I opened the letter and read it aloud. After doing so, Maulana Wali-ur-Rehman said to me, 'You must have known why you were called in an emergency for this meeting.' I smiled and said, 'Yes, I know'."

"The letter I read was written by the DG ISI, General Shuja Pasha to Maulana Wali-ur-Rehman Mehsud," he wrote.

"In it, General Shuja Pasha made an offer to the TTP leadership that if the TTP gave up its armed struggle against Pakistan, the ISI would not only provide them with a safe passage against NATO forces in Afghanistan but also provide financial and military support in every possible way. In this letter, General Shuja Pasha also praised the strength and capabilities of the TTP and called the TTP a necessity for Pakistan," he said.

"He wrote that we should work together to remove the misunderstandings between the Pakistan army and the TTP and work together to drive the great enemy US (America) and NATO out of Afghanistan," Ehsan said.

Ehsan further said: "General Pasha had also written that if TTP accepted the demands, the TTP would not just be able to demonstrate its abilities in Waziristan but the whole of Pakistan would be open for the TTP and that the cadre of TTP and their children would be able to work in this country by getting education from educational institutions in Islamabad and Peshawar."

General Shuja Pasha had further stated that if Wali-ur-Rehman Mehsud was able to convince his organization, he would be remembered as a hero in the history of Pakistan, Ehsan wrote as he recollected the meeting.

Pasha had further stated that the army would give him everything which will be beyond his imagination and desire, he said.

"Besides this, I was informed that General Pasha had also invited Maulana Sahib for a secret meeting. He had said that Naseer-ud-Din would arrange this secret meeting after seeing Naseer-ud-Din’s name in the letter," he said.

"I asked Maulana Wali-ur-Rehman which Naseer-ud-Din he was talking about. To which he replied that he was referring to Dr Naseeruddin Haqqani, the son of Jalaluddin Haqqani, the leading leader of the Afghan Taliban and the first head of the Haqqani network," Ehsan said.

In this detailed letter, General Shuja Pasha had repeatedly referred to the Indian “occupation” of and “atrocities” in Kashmir," the Taliban leader wrote.

He had written to Maulana Wali-ur-Rehman Sahib saying that his forefathers had fought many wars for the independence of Kashmir and had made many sacrifices because they were true and patriotic Pakistanis, Ehsan said.

"He, in the letter, had added that he should also join the Pakistan army in the 'Ghazwa e Hind' war against India, because the war against India is a true and just jihad against the real infidels and polytheists," Ehsan said.

Ehsan wrote in his article: "He also mentioned some Pakistan-backed organizations (Lashker-e-Tayyaba and Jaish-e-Mohammad) who were fighting against India in Kashmir and said that despite all the international pressure, Pakistan army was helping them because they were fighting for Pakistan. General Pasha had further stated that if the TTP fought for the interests of Pakistan, we (ISI) would support them on every front."

Ehsan said: "I have witnessed dozens of such occasions in which the Pakistani military and intelligence agencies have made various offers and concessions to all extremist groups, including the Taliban, to use them as their proxies."

Earlier this year, Ehsan had escaped from a safe house operated by the Pakistan Army.