PTI Islamabad, October 31, 2013 | UPDATED 14:56 IST
"We have information indicating that ISI and others intend to continue to provide material support to groups that have engaged terrorism," read the letter dated May 10, according to Haqqani in the book.
According to Baker, US law required applying "an onerous package of sanctions" against "states found to be supporting acts of international terrorism and I have the responsibility of carrying legislation."
"Your intelligence - Inter-Services Intelligence Directorate and elements of the Army are supporting Kashmiri and Sikh militants who carry out terrorism," Platt affirmed.
This support, Platt said, comprised "providing weapons, training and assistance in infiltration move all ambiguity. He insisted that "We're talking about covert Government of Pakistan support," the book says.
The meeting held a few days later was attended by the then Army Chief Gen Ashif Nawaz; the ISI head Lt Gen Javed Nasir and foreign secretary Shehryar Khan; and the author himself.
"The focus be on Indian atrocities in Kashmir, not on our support for the Kashmiri resistance," the then ISI chief is quoted as saying.
In fact, Nasir boasted that he knows how to handle the CIA. "We know how to take care of CIA," he said.
Haqqani writes that the final word at the meeting came from the army chief.
"Nawaz said that it was not in Pakistan's interest to get into a confrontation with the United States but 'We cannot shut down military operations against India either.'"
The army chief suggested that Pakistan get off the hook with the US by making some changes in its pattern of support for Kashmiri militancy without shutting down the entire clandestine operation ? and that is precisely the policy Pakistan adopted over the next few years," Haqqani writes.