As President Barack Obama prepares for an unprecedented second presidential visit to India, a former top American official has cautioned that strengthening of Indo-US ties could antagonise China and would make Beijing increasingly uncooperative on key global issues.

"With the President soon embarking on a trip to India, let me simply express the hope that the US will not unintentionally intensify concerns in Beijing that the US is inclined to help arm India as part of a de facto anti-Chinese Asian coalition," Zbigniew Brzezinski, who served as National Security Advisor from 1977 to 1981 during the Jimmy Carter administration told lawmakers during a Congressional hearing.

"That will simply discourage the Chinese from becoming more helpful in coping with the volatile dangers that confront us in Europe and in the Middle East," Brzezinski said in his appearance before the Senate Armed Services Committee.

However, Senators expressed their concern over military build-up by China.

"A rising China is forcefully asserting itself in historical and territorial disputes and alarming its neighbours, all the while investing billions of dollars in military capabilities that appear designed to displace and erode US power in the Asia-Pacific," said Senator John McCain, Chairman of the Senate Armed Services Committee.

Brzezinski said the Chinese have some genuine interests from the standpoint of the enhancement of their international power in the acquisition of cyber capabilities of a confrontational type.

"I don’t want to over exaggerate this and I’m searching for words that do not create some impression of an imminent danger," he said.