UNITED NATIONS, N. Y., Dec. 10 — Pakistan's Foreign Minister, Zulfikar Ali Bhutto, arrived here today to press his country's case. And India's chief delegate, Samar Sen, indicated that his country would not agree to a cease‐fire unless a representative of the East Pakistani separatist regime were formally heard at the United Nations.

Mr. Bhutto's arrival and Mr. Sen's statement were widely interpreted here as tactical moves in preparation for another Security Council meeting on the Indian‐Pakistani conflict. But by early tonight, no party had requested such a session.

The fiery Mr. Bhutto canceled an appointment with Secretary General Thant shortly after he arrived at Kennedy Airport.

Mr. Sen, in an interview at the delegates lounge here, said, “Any discussion of a ceasefire must be preceded by having the U. N. hear the representative of Bangla Desh.” Bangla Desh (Bengal Nation), the name given to East Pakistan by the Bengali dissidents, is recognized as a sovereign government by India.

India and the Soviet Union pressed for a Bangla Desh representative to be heard at last weekend's Security Council meeting, but the Council President, Ismael Taylor‐Kamara, did not put the matter to a vote.

Pakistan's chief delegate here, Agha Shahi, has said Pakistan refuses to negotiate with “secessionist elements,” meaning Bangla Desh.

Mr. Shahi, in a letter to Mr. Thant yesterday, said Pakistan had “decided to accept” the General Assembly's call for a cease‐fire and for a withdrawal of hostile troops to their own soil. But a Government spokesman in Rawalpindi said that Pakistan would only comply with the resolution if India also did.

The resolution was passed in the Assembly after a similar Security Council resolution was vetoed last Sunday by the Soviet Union.

Despite the prospect of further vetoes, some Council members, notably Britain, have expressed hope that the Council might achieve something “constructive” toward ending the fighting: One suggested possibility was a declaration of consensus by the Council President, which could be made without having a vote.

But Western diplomats predicted tonight that further United Nations action would be deferred until after the arrival of the Indian Foreign Minister, Swaran Singh. Mr. Sen said that Mr. Singh would arrive tomorrow.

Both Mr. Singh, and Mr. Bhutto, a noted orator, are expected to put their Government's views before the Council if and when it again debates on the crisis.

United Nations officials said Mr. Bhutto's appointment with Mr. Thant had been canceled 10 minutes before it was to have begun. They gave no explanation, United States officials also reported that an appointment that Mr. Bhutto had with the United. States representative George Bush, at the United States Mission, had been canceled with less than an hour's notice. They gave no explanation either.

A prominent Bengali jurist, Abu Sayeed Chowdhury, has come to New York to represent Bangla Desh before the United Nations, and has been in touch with some delegations.

Critics of the Pakistani regime have contended that the crisis on the subcontinent stemmed partly from actions by Mr. Bhutto, a veteran civilian political figure who was named Foreign Minister and Deputy Premier earlier this week.

A fiery orator, Mr. Bhutto heads the leftist People's party, which won 90 National Assembly seats in last December's national election. In that election, the Awami League of East Pakistan won 167 seats — a majority.

Finding himself in a weak position, Mr. Bhutto secured a postponement of the opening of the legislature. This was followed by unrest and violence in East Pakistan.

United Nations Secretariat officials reported privately tonight that Lieut. Gen. Rao Farman Ali, the military adviser to the Governor of East Pakistan, had cabled the Secretariat asking the help of the United Nations in moving civilian and military personnel from East to West Pakistan. But they said that a later message, from President Agha Mohammad Yahya Khan, advised the Secretariat to disregard the first message.