KARACHI, Pakistan, July 20 —President Agha Mohammad Yahya Khan was reported today to have received a letter from Robert S. McNamara, president of the World Bank, expressing regret over the unauthorized publication in the American press of a World Bank report on the situation in East Pakistan.

Receipt of the letter was reported by The Associated Press of Pakistan, the official press agency. The agency said the report, prepared by a World Bank team after a visit to Pakistan, was meant for private information of the 11‐nation consortium that coordinates aid for Pakistan. It said that Mr. McNamara had found the document “biased and provocative” and had placed restrictions on its circulation.

Excerpts from the report were printed in The New York Times of July 13, accompanied by a Washington dispatch disclosing its contents.

The agency said that “vested interests behind the biased and tendentious report defied the ban and leaked out portions of the draft report they thought damaging to Pakistan and embarrassing to the United States Government.”

The agency quoted “political quarters” in Rawalpindi, Pakistan's interim capital, as having said that the World Sank mission had “swallowed the Indian propaganda hook, line and sinker” and had produced a “highly tendentious and politically motivated report.”