 Accordingly, in the morning of 11 September, 1967, the engineers and "jawans" (soldiers) of Indian Army started laying the stretch of fencing from Nathu La to Sebu La along the perceived border.According to an Indian account, immediately a Chinese Political Commissar, with a section of Infantry, came to the centre of the pass where an Indian Lieutenant Colonel was standing with his commando platoon.The Chinese Commissar asked the Indian Colonel to stop laying the wire.