"The Chinese border defence troops have always been patrolling in Donglang district to protect the territorial rights, according to relevant border treaties and agreements," the Foreign Ministry said in a statement.
"There is no dispute that Donglang (Doklam) is always part of China's territory and is always under China's effective and valid administration," it added.
India, meanwhile, said there were "no new developments" at the face-off site and its vicinity in Doklam along the India-China border and status quo continues.
In late August, India and China ended their 73-day military stand-off at Doklam where their borders meet with Bhutan.
However, both sides decided to retreat from the face-off point, ending the crisis.
However, media reports said this week that China had increased the number of troops in Doklam and was expanding the existing road.
(Except for the headline, this story has not been edited by NDTV staff and is published from a syndicated feed.)