NEW DELHI, Oct. 27—Nikolai P. Firyubin, a Soviet Deputy Foreign Minister, left New Delhi today after a series of talks that apparently included discussions of Soviet military commitments to India in the event of an India‐Pakistan war.

Indian officials were reluctant to comment on the question of new Soviet arms aid, but they hinted broadly at it. “The Russians,” said one key official, “recognize the gravity of the situation in terms of their strong commitment to India. They also recognize that nobody in India wishes to go to war, but that we will not sit back if war is forced on us.”

One probable reason for the Indian reticence on the Soviet arms issue, some diplomats here feel, is New Delhi's de sire to avoid adding a new irritant to its already strained relations with the United States, particularly at a time when Prime Minister Indira Gandhi is about to visit there.

Western Officials Critical

Western officials have al ready expressed private criti cism and concern about the 20‐year “friendship treaty” that India signed with the Soviet Union on Aug. 9.

Mr. Firyubin, who arrived here last Saturday, met with Mrs. Gandhi before she left. The Indian Government originally described his talks here as nothing more than “annual bilateral consultations,” but they have now dropped that euphemism.

At a briefing today on the talks, a spokesman for the Indian Foreign Ministry said: “One can argue that they were bilateral talks. But I would say [they were something more than that. Because we have referred to Article 9 of the treaty, which introduces a new element.”

Article 9 says that if either country is attacked or threatened by a third party, both signatories “shall immediately enter into mutual consultations in order to remove such threat and to take appropriate effective measures to insure peace and the security of their countries.”

A brief joint press release is sued by the Foreign Ministry said, in part: “These consultations were held in connection with the present tense situation in the Indian subcontinent which threatens the cause of peace in this region. The two sides were in full agreement in their assessment of the situation.”

When the ministry spokes man was asked what this assessment was, he replied: “That the situation is serious and grave.”