
Chinese state-run media said Delhi should either withdraw its troops "with dignity or be kicked out".
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China says no bilateral meeting for PM Modi, Xi Jinping at G20
India makes it clear it had not sought formal one-on-one meeting
India militarizing the border in Sikkim, ignoring our concerns: China
"Over the past few years it's actually been India that has in the Sikkim sector of the China-India border who has been building a great number of facilities and deploying a large number of forces," Chinese Foreign Ministry spokesman Shuang Genf said.
In some areas India has been building military facilities including fortifications, he added.
A stand-off on a plateau next to the mountainous state of Sikkim, which borders China, has ratcheted up tension in recent days.
According to the Chinese interpretation of events, Indian soldiers crossed into China's Donglang region early in June and obstructed work on a road on the plateau.
Troops from the two sides are confronting each other close to a valley controlled by China that separates India from Bhutan - a close Indian ally - and gives China access to the so-called Chicken's Neck, a thin strip of land that connects India to its remote north eastern regions.
India has said it had warned China that construction of the road near the border would have serious security implications.
China says it has every right to build roads in its own territory. But Bhutan and India claim the land belongs to the tiny Himalayan kingdom.
PM Modi arrives in Hamburg tonight for the G20 summit of large and powerful economies which will place him in the same room as the Chinese president. India made it clear that it had not asked for a bilateral and that "the PM's schedule remains unchanged". Both sides have not commented on whether the leaders may choose to meet informally during the heightened tension.
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