WASHINGTON, Dec. 11 —President Nixon has ordered United States Government agencies to start preparing plans for huge relief and rehabilitation efforts when the Indian‐Pakistani fighting stops.

Senior officials who disclosed this today said that Henry A. Kissinger, White House assistant for national security affairs, had begun collating preliminary plans submitted by the State and Defense departments, the Agency for International Development and other agencies that would be involved.

These officials also said that it was now privately assumed at high Government levels here that Pakistan could not continue as she had since 1947. An independent Bengal Nation—or Bangla Desh—in East Pakistan is considered a foregone conclusion, several officials conceded.

“There are 70,000 Pakistani troops to be shipped 1,000 miles home somehow,” one official said. “There are 10 million refugees in India to be resettled. There are two million civilian noncombatants both in East and West Pakistan who may want to shift. There are wrecked communications systems to be rebuilt, food shipments, health problems you name it. It will take hundreds of millions of dollars and may last 10 to 15‐ years.”

Officials stress that the United States will probably continue providing the bulk of the funds and equipment in any postwar international relief effort—as it was before full‐scale fighting broke out on Dec. 3. The United States has provided $90‐million for refugees in India and $150‐million for relief in East Pakistan.

The 107 relief workers on the ground in East Pakistan were provided, however, by the United Nations East Pakistan relief organization. The United States itself has only a dozen aid officials in Dacca awaiting evacuation.

Both the effort in East Pakistan and the aid to refugees in India, which is coordinated by Prince Sadruddin Aga Khan, the United Nations High Commissioner for Refugees, have been suspended until the fighting ends.

Both United Nations agencies remain in close touch with Maurice J. Williams, assistant aid administrator, who supervises relief to East Pakistan, and Francis L. Kellogg, State Department administrator for relief to refugees in India.

Officials here concede that the United States faces serious difficulties in establishing quick, effective working cooperation with the local representatives of India and of the Pakistani insurgents when the fighting ends.

“We don't recognize Bangla Desh,” one senior administrator said, “and after the recent spate of anti‐Indian backgrounders here by top officials our relations with India are just about rock‐bottom.”

On Saturday, Dec. 4, these officials recalled, Joseph J. Sisco, Assistant Secretary of State for Near Eastern and South Asian Affairs, called reporters to the State Department for a “background” briefing.

Mr. Sisco refused to allow himself to be identified but told newsmen they could directly quote “senior officials” as stating that India bore the “major responsibility” for broadening the war.

On Tuesday, Mr. Kissinger assembled reporters at the White House to “clarify” public confusion‐over the Administration's efforts to blame India for the war.

Mr. Kissinger insisted that he be identified only as “senior officials.” His identity was publicly disclosed yesterday, however, by Senator Barry Goldwater, Republican of Arizona, who published a transcript of the briefing in the Congressional Record.

Mr. Kissinger's background briefing was privately described by Administration sources as an attempt to soften the impact of Mr. Sisco's anti‐Indian strictures, which evoked strong protests by the Government in New Delhi.

The disclosure of the current White House efforts to draw up relief and rehabilitation plans is viewed as a further move to offset criticism and shift Congressional and public attention from the Administration's cool relations with India to future “humanitarian” projects.