The new Chinese Ethnic Unity and Progress Law is not only directed against those living inside Chinese borders but, according to human rights defenders, also tries to stretch Beijing's control over the overseas Uyghur, Tibetan and Mongolian communities. This is yet another escalation of China's attempts to suppress its critics beyond the border. China's National People's Congress passed the law on March 12. It legally consolidates President Xi Jinping's constant efforts to establish a national identity and promote the idea of a single "Chinese nation". The law encourages Mandarin to be spoken as the common language and stresses the integration of the country's 56 officially recognised ethnic groups into the Chinese identity. Across Delhi, Kolkata and other cities, tibetans protested against the law by shaving their heads and show of dissent. Watch this.