Nepal govt. did not violate any ANY international conventions by shutting down the Tibetan office in kathmandu, because HMG does not recognize Tibetan governmnet in exile at all. And it's under our jurisdiction to close the offices of organziations/entities that we do not recognize. Furthermore, thsoe offices were opened without getting all the required permits from the Ministry of Foreign Afairs. If tomorrow IRA, LTTE, PLA comes to Nepal and open their offices, the governmnet will have to close those down too. Its not a big deal. I mean, if the governmnet had shut down a PLA office, would the British Embassy and others be "regretting" it? Think about it.