India shares a long border with China's Tibetan region.
A fully-staffed and equipped brigade engaged in various drills involving the rapid movement of troops, use of digital devices and combined attacks by multiple forces, according to a China Central Television station (CCTV) report.
The Chinese state-run media has also been openly talking of war and of teaching India a "lesson" like the defeat of the 1962 war.
Ashok Malik, an analyst at Delhi's Observer Research Foundation, told The Guardian that China is continuing its attempts to hem India's influence in South Asia.
According to the CCTV report, the brigade has always been stationed around the middle and lower reaches of the Yarlung Zangbo River and is responsible for frontline combat missions. The circumstances are enveloped in thick fog endemic to those remote mountains at 10000 feet above sea level - and to the complicated India-China relationship.
Video posted online showed soldiers using anti-tank grenades and missiles against bunkers and howitzers for artillery coverage.
Separately, Tibet's mobile communication agency conducted a drill on 10 July in Lhasa, capital of Tibet, where members of the agency practiced setting up a temporary mobile network to secure communications in an emergency. It began on June 18, after Beijing said New Delhi had violated border agreements after Indian troops allegedly entered Doklam and stopped the Chinese Army from constructing a road.
Xiao Ning, editor-in-chief of Weapon magazine, said the new light tank features strong firepower, advanced armour and good mobility, so it is suitable for deployment on plateaus. The rift escalated after Chinese Army's construction party attempted to build road near the area. It has been noticed that Indian Foreign Minister Subrahmanyam Jaishankar recently made positive remarks in Singapore, saying, "India and China should not let differences become disputes".
India today termed as "utterly baseless, malicious and mischievous" a report about casualties of Indian soldiers in Sikkim due to military action with another country.
Doka La is the Indian name for the region which Bhutan recognises as Dokalam, while China claims it as part of its Donglang region.