I was told by someone that the Tibetan Refugee Welfare Office in Kathmandu which is also known as Gaden Khangsar, located in Lazimpat, Kathmandu, has shut.
It is well known that the Nepali government is not inclined to have the CTA or any other organisation for that matter, jeopardise its economic and political interests when it comes to its goal of nation building.
The number of Tibetan "refugees" into Nepal have trickled down to very few for various pull-push factors including the fact that Tibet itself today, offers tremendously better economic opportunities for Tibetans.
Therefore, I guess there has been literally no activities at Gaden Khangsar for a long time.
The CTA, rather than being of the "middle-way" as it paints itself to be, is indeed a dangerous, divisive, thorn which many governments including the one in Nepal, understand.