"If they have come 19 kilometers into India, it is not a minor LAC violation. It is a deliberate military operation. And even as India protests, more tents have come up," said Sujit Dutta, a China specialist at the Jamia Milia Islamia university in New Delhi.
"Clearly, the Chinese are testing India to see how far they can go," he said.
That is not China's stated view.
"China strictly complies with the treaty and documents on maintaining peace and stability in the border region between India and China," Chinese Foreign Ministry spokeswoman Hua Chunying said last week.
"The Chinese patrol troops did not go across the Line of Actual Control, not by even one step," she said.