Cai Qi, director of the General Office of the CPC Central Committee, was also present at the gathering.

Addressing the event, Wang said the founding of the Xizang autonomous region in September 1965 marked an epoch-making event.

Over the past six decades, Xizang has made significant strides in economic and social development, fully demonstrating the strong leadership of the CPC and the clear political strength of China's socialist system, he said.

Wang said that since the 18th CPC National Congress in 2012, Xizang has entered its best period of development and made the most substantial progress, with people of all ethnic groups benefiting more than ever before.

He emphasized that Xizang is an inalienable part of China, and its affairs are purely China's internal affairs, which brook no interference from external forces.

Any attempt to split the motherland and undermine Xizang's stability is doomed to fail, he said.