Out of 18, four personnel were critically injured but they are responding to treatment and are stable now, people familiar with the matter said.
Bagchi said this when asked to comment on remarks by a Chinese diplomat that the situation in the India-China border areas is stable.
Sources said Wang is primarily visiting India to hold boundary talks with National Security Advisor Ajit Doval.
The two sides have already held at least 12 rounds of talks between local commanders and three rounds of talks between major general-rank officials but no positive outcome came out from the discussions, they said.
The Chinese and the Indian troops were engaged in a standoff for 73 days in Doklam.
The last time the Chinese military had taken Indian soldiers captive was in July 1962 after a clash in Galwan Valley.
Chinese foreign ministry spokesman Geng Shuang told a media briefing in Beijing that "at the moment the situation in the boundary region between China and India is overall stable and controllable".
'I strongly urge China to respect norms and use diplomacy and existing mechanisms to resolve its border questions with India'
The last conversation between the two leaders was on April 4 on the issue of hydroxychloroquine.
The Chinese action followed 'India's recent, illegal construction of defence facilities across the border into Chinese territory in the Galwan Valley region', a write-up in the state-run Global Times tabloid said, quoting unnamed military sources.
The two sides have already held 21 rounds of talks under the framework of SR dialogue which was set up to find an early solution to the border dispute.
Chinese President Xi Jinping has bestowed special honours on a PLA battalion posted in Tibet close to Arunachal Pradesh for its "outstanding performance in safeguarding borders".
The 17th Gyalwang Karmapa Ogyen Trinley Dorje last week visited Arunachal Pradesh, which China claims as a part of southern Tibet.
'The need of the hour is to build on the positives and control the negatives,' says Colonel (Dr) Anil A Athale (retd).
China said that after this incident both sides are in communication and coordination on the matter through diplomatic and military channels.
'In South Asia, unlike Southeast, East, or Central Asia, there is a natural hegemon: India. China cannot cast it aside easily'
Dai Bingguo, who served as the China's boundary negotiator with India from 2003 to 2013, told Chinese media, "If the Indian side takes care of China's concerns in the eastern sector of their border, the Chinese side will respond accordingly and address India's concerns elsewhere."
The Indian side is expected to present specific proposals at the talks to deescalate tension in Pangong Tso, Galwan Valley and Demchok -- the three areas in eastern Ladakh where the two sides have been on a bitter standoff for last one month, the sources said.
Singh said a meeting between senior Indian and Chinese military leaders has been scheduled for June 6 even as he asserted that India is not going to back off from its position. Asked about the current situation in sensitive areas in eastern Ladakh, he said Chinese have come up to what they claim is their territory while Indians believed it is theirs.
Defence Minister Rajnath Singh on Saturday asserted that the government will not allow India's pride to be hurt under any circumstances even as he said bilateral talks were on at military and diplomatic levels to resolve the row.
The MEA spokesperson did not reply to questions like whether the US had approached India with the offer, whether New Delhi has communicated its response over it to Washington, DC or whether the Trump administration has been briefed about the current standoff between Chinese and Indian soldiers in eastern Ladakh.
The Indian Army will continue to maintain its aggressive posturing in all disputed areas in eastern Ladakh and will not back off till status quo is maintained, sources said.
At least a couple of Chinese military helicopters were spotted flying close to the un-demarcated Sino-India border in the area after the fierce face-off on May 5 following which a fleet of Sukhoi-30 jets of the Indian Air Force too carried out sorties there, the sources said.
Sticking to its stand that McMahon Line on India-China boundary is "illegal", China on Monday said it is ready to work with India to resolve the vexed border issue at an early date through "friendly consultations" to create more favourable conditions for bilateral ties.
The ministry of external affairs said India has conveyed its "consistent position" on the issue to China on several occasions.
Army chief General Naravane said the ongoing dialogue will sort out all the perceived differences between the two countries.
The talks between the two armies are going to be held this week at multiple locations including Patroling point 14 (Galwan area), Patrolling point 15, and Hot Springs area, top government sources said.
India and China have so far held 19 rounds of talks to resolve the boundary dispute.
China said it was committed to peace and tranquility at the border areas.
The Chinese media has accused India of using the Dalai Lama card to deal with China's growing economic and political influence in South Asia and warned New Delhi of "severe consequences" if it hosted the Tibetan spiritual leader in a "disputed" area in Arunachal Pradesh.
'Tibetans will participate in future conflicts with India (in all probability, some were already present in Galwan).' 'As nobody in India would like to have a deadly fight with Tibetan soldiers and officers, the issue needs to be closely followed,' observes Claude Arpi.
While the de-escalation process was underway, a violent face-off took place on Monday night between Indian and Chinese troops leading to the death of 20 Indian soldiers.
The enhancement of combat capability by the two armies in the region came even as both the countries continued their efforts to resolve the dispute through talks at military and diplomatic levels.
In the review meeting, Singh told the top military brass to continue to deal with the situation in eastern Ladakh and other areas with "firmness".
The commanders will also deliberate on the overall situation in Jammu and Kashmir besides delving into issues having national security implications, they said. However, the main focus will be on the situation in eastern Ladakh where Indian and Chinese troops are locked in an eyeball-to-eyeball face-off in Pangong Tso, Galwan Valley, Demchok and Daulat Beg Oldie, the sources said.
The talks came a day after the two armies began a limited disengagement in a few areas in Galwan Valley and Hot Spring in a demonstration of their intent to end the row peacefully.
The Indian Army has been matching up to the Chinese build up in both Pangong Tso lake and Galwan Valley, the two locations in Ladakh which have witnessed major reinforcement of troops in the last two weeks, sources said. There was very little chance of easing of tension anytime soon as both sides are aggressively holding onto their respective positions, they said.
The Indian delegation led by Lt General Harinder Singh, the general officer commanding of Leh-based 14 Corps, and Commander of the Tibet Military District Maj Gen Liu Lin held an extensive meeting in Maldo on the Chinese side of the Line of Actual Control in eastern Ladakh on Saturday that began at around 11.30 am and went on till evening.
The focus of the talks will be to ensure mutual development and expanding overall ties, diplomatic sources said.
On May 5, around 250 Indian and Chinese army personnel clashed with iron rods, sticks, and even resorted to stone-pelting in Pangong Tso lake area in Eastern Ladakh.