The Chinese People’s Liberation Army is said to have reinforced its posts in large numbers and increased the scale of its training exercises by deploying military assets along the Line of Actual Control (LAC) in Arunachal Pradesh’s Tawang, sources in the Indian security establishment have said.

“It is a matter of concern that the PLA troops have moved heavy reinforcements along the LAC in Arunachal Pradesh and have established temporary camps. The PLA has also increased the scale of its training exercises by bringing in additional military assets along the undemarcated frontier in the eastern sector,” a security official attached to the Union home ministry told The Telegraph.

The Indian Army troops, the official said, have been keeping a close watch on the development. “Considering the aggressive patrolling by the PLA troops and reinforcement of their posts in the eastern sector, it seems they are planning incursions like they did last May in eastern Ladakh,” the security official said.

Of the 3,488km undemarcated LAC, 1,346km falls in the eastern sector. The Tawang sector alone has a 270km border with China. China claims 90,000sqkm of territory, practically the whole of Arunachal Pradesh.

The Indian and Chinese armies have been locked in a border standoff in Ladakh since May last year and the PLA is estimated to have taken over nearly 1,000 sq km of India-claimed territory.

In an attempt to guard against possible PLA transgressions, the Indian Army is deploying additional cameras and using satellite imagery to monitor the deployment of Chinese troops along the LAC in the eastern sector.