The Kongka Pass or Kongka La, elevation 5,171 m (16,965 ft), is a high mountain pass of the Chang-Chemno Range on the Line of Actual Control. China considers the Kongka Pass as its boundary with India, whereas India regards Lanak Pass further east as the boundary. A source states that the traditional border between China and India lay at the Kongka Pass However, other sources state that the traditional boundary between India and Tibet accepted by both sides was at Lanak La.
In October 1959, Indian troops crossed the Kongka Pass in an attempt to establish posts on the Lanak Pass. This resulted in a clash with the Chinese soldiers posted on Kongka Pass. Of the 70 Indian soldiers, nine were killed and ten were taken prisoner. Chinese soldiers reportedly suffered one death. Indian media described the event a "brutal massacre of an Indian policy party." The incident preceded the Sino-Indian War in 1962.