The electromagnetic weapons which fry the human tissue of enemy troops "turned the mountain tops into a microwave oven" and made the Indian soldiers puke, international studies expert Jin Canrong told his students in Beijing.
The microwave weapons heat water molecules in the same way as the kitchen device, targeting water under the skin and producing a growing pain to the target from areas up to 0.6 miles away.
Jin praised the Chinese forces for "beautifully" performing the move which cleared out Indian troops without breaking a limitation on shooting along the contentious border.
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It is the first known use of microwave weapons on a battlefield.
The weapons were said to have been used in late August, weeks after a deadly battle involving rocks and clubs which killed at least 20 Indian soldiers and brought the two nuclear-armed nations closer to war than they have been in 53 years on one of the world's highest-altitude battlefields.
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Jin told his students that within 15 minutes of the weapons being used, "those occupying the hilltops all began to vomit".
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"They couldn't stand up, so they fled. This was how we retook the ground," he explained.
China's forces chose to use the weapons because the altitude was too high to battle against a team of Tibetan mountaineering specialists, Jin said.
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Shooting is banned under an old prohibition, although there were warning shots in September in a transfer of fire which both sides indicted on each other.
While the US has also made microwave-style weapons, China's supposed use of them may be the first against enemy troops anywhere in the world.
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Also meant for deployment in crowd control, the weapon works by heating the water under the skin to extreme temperatures which force people out of the area.
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The sensation was once described in a medical journal as equivalent to touching a hot lightbulb. Overexposure to radiation can also cause headaches, nausea and vomiting.
Both sides accused each other of causing the dispute, while the US took India's side by offering "deepest condolences" to the soldiers killed.
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The two sides are now considering a reeled withdrawal from the border area where temperatures have dropped to -18C, Indian officials said.
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"We have a firm plan for disengagement on the table, it is being internally discussed on both sides," said one of the officials.
Under the arrangement that was shared during a meeting of top commanders last Friday, both nations will withdraw from the disputed Pangong Tso lake area and build a defense zone.
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