External Affairs Minister S Jaishankar on Tuesday took a strong position on the Sino-India border row and asserted any unilateral attempts to change the Line of Actual Control (LAC) will not be "countenanced" by India, and insisted that the ongoing problem was a fallout of the neighbour occupying strategic areas in 1962. The Union minister's response came while answering a query seeking India's official position with regard to former Congress chief Rahul Gandhi's tweet claiming there was "increasing Chinese infiltration" into Indian territory.