Brahmaputra And Lhasa

Brahmaputra, I learned today, starts somewhere near Delhi, near the Uttaranchal border with Nepal in a place called Burang in Tibet,  then flows eastword across Tibet beyond Lhasa then south into Arunachal Pradesh, and Assam (near Dibrugarh - near that house with the A/C) and then west towards Gauhati and then South into Bangladesh where, towards the end, it joins with Ganga.

Additional reading:

On Brahmaputra:

1. http://www.britannica.com/EBchecked/topic/77154/Brahmaputra-River
2. https://shipbright.wordpress.com/2010/02/24/the-brahmaputra-river-china-india-and-bangladesh-the-dragon-is-at-the-headwaters/
3. https://sandrp.wordpress.com/2013/07/17/brahmaputra-the-beautiful-river-or-the-battleground/

On Lhasa:

http://en.wikipedia.org/wiki/Lhasa