NEW DELHI, Aug. 6—Foreign Minister Andrei A. Gromyko of the Soviet Union will visit India Sunday in what foreign diplomats here view as a gesture of solidarity in India's current dispute with Pakistan.

Western diplomats generally interpreted the news, announced today by the Indian Government, as an implicit warning to Pakistan that the Soviet Union would support India in the event of an Indian Pakistani war.

Pakistan's President, Agha Mohammad Yahya Khan, has said recently that war with India is “very near” and has warned that if India helped the Bengali separatists to seize Ease Pakistani territory, he would view that as an Indian attack on Pakistan and would declare war.

India has responded by saying that if Pakistan started war, India would be fully pre pared to fight. Both countries have said they would not “be alone” in such a fight. They were referring apparently to their big‐power allies China, in Pakistan's case, and the Soviet Union, in India's.

Since March 25, the Pakistani Army, composed of West Pakistani troops, has been trying to crush the separatist movement in East Pakistan. More than seven million Bengali refugees have fled to India. For its part, India, which has already fought two wars with Pakistan over territory, has been helping the Bangali guerrillas by providing sanctuary, training and arms.

The suddenness was emphasized by the fact that Swaran Singh, the Indian Foreign Affairs Minister, who had been due to leave Tuesday for an official visit to Jakarta, Indonesia, delayed his departure.

An Indian Foreign Ministry spokesman said Mr. Gromyko would be in New Delhi three to five days, depending on how long the discussions lasted. He will be arriving Sunday evening with Mrs. Gromyko and a party of 12 officials of the Soviet Foreign Ministry.

Mr. Gromyko will meet with Prime Minister Indira Gandhi, Mr. Singh and other top Indian officials.

The announcement followed a sudden trip to Moscow three days ago by Durga Prasad Dhar, former Indian Ambassador to the Soviet Union.

Mr. Dhar was apparently acting as a special envoy for Mrs. Gandhi. Diplomatic observers believe that with tensions heightening, India has asked Moscow for a commitment in the event of a Pakistani attack.

As this crisis has developed, the Indian Government has come to feel somewhat isolated, with China supporting Pakistan and the United States pursuing an ambiguous policy, giving sizable relief aid for the Bengali refugees in India, but continuing shipments of arms to Pakistan.

There has also been concern in some Indian circles over the possible rapprochement be tween Washington and Peking; relations between India and China have been hostile since their border war of 1962.

Grist for Gandhi Critics

United States officials have, in private, long complained about India's growing friendship with the Soviet Union. Mrs. Gandhi's critics have accused her of being a “toady” of Moscow. Mr. Gromyko's visit will probably give the Prime Minister's critics new ammunition, but it will be a help to the pro‐Soviet elements in the Government and in Parliament.

The Indian Foreign Ministry spokesman, at a briefing, dismissed suggestions that Mr. Gromyko might he coming to counsel India toward restraint or to try to arrange a meeting between Mrs. Gandhi and the President of Pakistan.

The spokesman declined to discuss the specific purpose of the Gromyko visit, but his hints were obvious.

“We have deliberately built up a cordial relationship with the Soviet Union, and as everybody knows, the Soviet Union has reciprocated our friendly attitude and has extended economic and technical aid,” he said.

“They have also given us arms which others have refused to give—jet fighters, for example. It will be a fair guess that once again, the Soviet Union will express solidarity with India.”