Washington, April 14 -- Terming Chinese "occupation of contested areas" on the Sino-Indian border last year a "most serious escalation in decades", a United States intelligence report said border tensions between New Delhi and Beijing "remain high" despite some force pullbacks early this year.

In an unclassified annual report on worldwide threats assessment, the US' Office of the Director of National Intelligence (ODNI) on Tuesday noted that after multiple rounds of talks, as of mid-February, both sides were pulling back forces and equipment from some sites along the disputed border.

The office of DNI oversees the US Intelligence Community and serves as principal adviser to the President on intelligence issues.

"China-India border tens...