Story highlights Reports say that Beijing has greenlighted the construction of dams on the river. They could be built on the lower reaches of the Brahmaputra, which fall inside Tibet While Pakistan struggles, it's iron brother China is keen on giving more headaches to New Delhi. China has cleared a hydropower project in Tibet, close to the border with India. These dams will be built on the lower reaches of the Brahmaputra on the Chinese side. So, let's understand why India has a reason to worry. The Mekong river, which flows through the Thai-Lao border, has vanished or gone dry in two years.