Beijing: China on Wednesday claimed that the sovereignty of the Galwan Valley area in Ladakh "always belonged to it," a day after the armies of the two countries were engaged in a violent face-off.

India's External Affairs Ministry on Tuesday said the violent confrontation between armies of India and China in eastern Ladakh was the result of an attempt by the Chinese side to unilaterally change the status quo in the region.

The ministry said both sides suffered casualties that could have been avoided had the agreement arrived earlier at the higher level been scrupulously followed by the Chinese side.

At a briefing at the Chinese Foreign Ministry, Spokesman Zhao Lijian refused to comment on reports of 43 casualties on the Chinese side during the face-off in the Galwan Valley on Monday night.

"The border troops are dealing with relevant matter," he said.

When pointed out that the India has released the number of casualties and why Beijing was not providing the number for Chinese side, he said, "I have stated that Chinese and Indian border troops are now jointly dealing with the relevant matter on the ground. I have nothing to add at the moment."

On the situation at the China-India border both sides are having close communication with each other resolving this through diplomatic and military channels, Zhao said.

"The over all border situation is stable and controllable," he told correspondents to a volley of questions.

China suffered 35 casualties: US intelligence reports

The Chinese Army suffered 35 casualties during the violent clash, official sources said on Wednesday quoting US intelligence reports. The figure could be a combination of total number of soldiers killed and seriously wounded, they added.

There were 35 casualties on the Chinese side, the sources said citing US intelligence reports.

Twenty Indian Army personnel, including a Colonel, were killed in the clash with Chinese troops in the Galwan Valley on Monday night.

A large number of Indian and Chinese troops have been engaged in an eyeball-to-eyeball situation in Galwan Valley and certain other areas of eastern Ladakh for the last five weeks, including in Pangong Tso, Galwan Valley, Demchok and Daulat Beg Oldie in eastern Ladakh.

Monday's clash was the biggest confrontation between the two militaries after their 1967 clashes in Nathu La in 1967 when India lost around 80 soldiers while over 300 Chinese army personnel were killed in the confrontation.