In view of the nearly 20-day standoff between the two sides, the Indian Army has significantly ramped up its presence in sensitive border areas in North Sikkim, Uttarakhand and Arunachal Pradesh besides Ladakh to send across a message that India will not be wilting under any aggressive military posturing by China, the sources said.

New Delhi: India will not stop infrastructure development projects in strategic areas along the nearly 3,500-km Sino-India border, notwithstanding China's well-coordinated efforts to stall them by attempting to vitiate the situation in areas like eastern Ladakh, government sources said on Tuesday.

It is learnt that Defence Minister Rajnath Singh has conveyed to top military brass that there was no need for reviewing the implementation of any of the key projects along the Line of Actual Control (LAC) in Ladakh, Sikkim, Uttarakhand or in Arunachal Pradesh in view of the aggressive behaviour by Chinese troops in several sensitive areas.

In view of the nearly 20-day standoff between the two sides, the Indian Army has significantly ramped up its presence in sensitive border areas in North Sikkim, Uttarakhand and Arunachal Pradesh besides Ladakh to send across a message that India will not be wilting under any aggressive military posturing by China, the sources said.

They said Army Chief Gen MM Naravane has been briefing the defence minister about the fast evolving situation in eastern Ladakh on almost daily basis and it has been decided to put up a stiff counter to China's transgressions into Indian areas along the LAC, the de-facto boundary between the two countries.

The Chinese side has been particularly peeved at India laying a key road in the finger area of Pangong Tso Lake region besides another road connecting the Darbuk-Shayok-Daulat Beg Oldie road in Galwan Valley.

Singh on Tuesday held a meeting with three service chiefs on the implementation of a wide range of reform measures in the armed forces. It is not immediately clear whether the situation in eastern Ladakh figured in the deliberations.

In the last five years, India has been focusing on improving road and other key infrastructure along the LAC as part of efforts to bolster military preparedness to deal with any challenge from the Chinese side.

The situation in eastern Ladakh deteriorated after around 250 Chinese and Indian soldiers were engaged in a violent face-off on the evening of May 5 which spilled over to the next day before the two sides agreed to "disengage" following a meeting at the level of local commanders.

Over 100 Indian and Chinese soldiers were injured in the violence. The trigger for the incident was China's strong objection to the road being laid by India in the Finger area in Pangong Tso lake.

The incident in Pangong Tso was followed by a similar incident in North Sikkim on May 9

Since then, Chinese military has increased its strength in Pangong Tso lake, Galwan Valley, Demchok and Daulat Beg Oldi, and is resorting to "aggressive patrolling" in these areas. The India Army is also carrying out similar exercise in the region, sources said.

India last week said the Chinese military was hindering normal patrolling by its troops and asserted that India has always taken a very responsible approach towards border management.

At a media briefing, External Affairs Ministry Spokesperson Anurag Srivastava also strongly refuted China's contention that the tension was triggered due to trespassing by Indian forces on the Chinese side.

India's response came two days after China accused the Indian Army of trespassing into its territory, claiming that it was an "attempt to unilaterally change the status" of the LAC in Sikkim and Ladakh.

On May 5, the Indian and Chinese army personnel clashed with iron rods, sticks, and even resorted to stone-pelting in the Pangong Tso lake area in which soldiers on both sides sustained injuries.

In a separate incident, nearly 150 Indian and Chinese military personnel were engaged in a face-off near Naku La Pass in the Sikkim sector on May 9. At least 10 soldiers from both sides sustained injuries.

The troops of India and China were engaged in a 73-day stand-off in Doklam tri-junction in 2017 which even triggered fears of a war between the two nuclear-armed neighbours.

The India-China border dispute covers the 3,488-km-long LAC. China claims Arunachal Pradesh as part of southern Tibet while India contests it.

Both sides have been asserting that pending the final resolution of the boundary issue, it is necessary to maintain peace and tranquillity in the border areas.

Prime Minister Narendra Modi and Chinese President Xi Jinping held their first informal summit in April 2018 in the Chinese city of Wuhan, months after the Doklam standoff.

In the summit, the two leaders decided to issue "strategic guidance" to their militaries to strengthen communications so that they can build trust and understanding.

Modi and Xi held their second informal summit in Mamallapuram near Chennai in October last year with a focus on further broadening bilateral ties.