China already operates three railway lines to Tibet: the Qinghai–Tibet line, the Lhasa–Shigatse line, and the Lhasa–Nyingchi line, the last of which runs close to the India–Arunachal Pradesh border.
China on Monday officially released the 2023 edition of its "standard map" that claimed Arunachal Pradesh and Aksai Chin as belonging to that country.
India on Wednesday termed as "unacceptable" China depicting Arunachal Pradesh and Aksai Chin as its territory in maps of the country on their new e- passports, a step that led to retaliatory action by New Delhi.
India and China are back to sparring over territorial claims involving Arunachal Pradesh and Aksai Chin.