What are south Asia's 3 largest rivers and what is their source

The 3 largest rivers in South Asia are:

1. The Yangtze River

The Yangtze River is the longest river in China and the third longest in the world, measuring an impressive 6,380 kilometres in length. Steeped in myth and legend, vertical limestone cliffs line the river as it rises up to the mountains of Tibet.

2. The Mekong River

The Mekong River is an important source of water in Southeast Asia, measuring 4,350 kilometres in length. The river flows from the Tibetan Plateau through China, Myanmar, Laos, Thailand, Cambodia, and finally, Vietnam.

3. Brahmaputra River

One of Asia's major rivers, the Brahmaputra River flows through China, India and Bangladesh. The river originates in the Tibetan Himalayas and travels almost 2,900 kilometres in length.