It said it was "deeply grateful" to the Indian government "for all the support and help" and for providing the requisite security for the Dalai Lama.
The invitation to Lobsang Sangay, political head of the Tibetan government in exile, at the swearing-in ceremony of Prime Minister Narendra Modi is believed to have not gone down well with the Chinese government.
The TWA is the second largest Tibetan NGO based in exile in India and the only women's NGO in Tibetan history. It is a 17,000 member organisation with 56 chapters in four continents - Asia, US, Europe and Australia.