How did China pulled back when they did not come inside?

The disengagement along the Line of Actual Control (LAC) with the Chinese troops pulling back from Galwan came after call of National Security Advisor (NSA) Ajit Doval with the Chinese foreign minister Wang Yi on Sunday. In the first sign of de-escalation of tension in eastern Ladakh, the Chinese Army on Monday removed tents and started to withdraw its troops from Galwan Valley. During the debate on this issue, Congress spokesperson asked that how did the Chinese army pulled back when they did not come inside?