Nearly 1,000 Chinese soldiers intruded into India in Ladakh's Chumur sector on Thursday, a day when Chinese President Xi Jinping is on a visit here.
According to Army sources, nearly 1,000 Chinese soldiers moved inside the Line of Actual Control (LAC) in Jammu and Kashmir's Ladakh region, and refused to go back.
The Indian Army has rushed three battalions to the LAC in the sector.
This Chinese incursion is being touted as the worst in recent years.
PM Narendra Modi raised the issue of incursions with Chinese President Xi Jinping last night during their meeting. The issue will be raised again today, MEA spokesman Syed Akbaruddin said today.
National security adviser Ajit Doval is said to be monitoring the situation himself.
A flag meeting that was held on Wednesday to diffuse the gnawing tension was of brigadier-level. It was held at a border personnel meeting point in Chushul, where the issue of intrusion of Chinese civilians in the Demchok area was also discussed, Army sources said.
Chumar is one of the very few places along the Line of Actual Control where access to the border areas is easier from the Indian side and this place has witnessed several face-off situations in the last two-three years.
It is being reported that senior members of the external affairs ministry and defence ministry are in constant touch with their counterparts in China to bring a swift end to the growing troubles at the border.