The close ties of the Wangchuck and Dorji families were reemphasized in the person of the new king, whose mother, Ashi Kesang Dorji (Ashi means Queen), was the sister of the lonchen, Jigme Palden Dorji. Jigme Singye Wangchuck, who had been educated in India and Britain, had been appointed ponlop of Tongsa in May 1972 and by July that year had become the Druk Gyalpo. With his mother and two elder sisters as advisers, the new Druk Gyalpo was thrust into the affairs of state. He was often seen among the people, in the countryside, at festivals, and, as his reign progressed, meeting with foreign dignitaries in Bhutan and abroad. His formal coronation took place in June 1974, and soon thereafter the strains between the Wangchucks and Dorjis were relieved with the return that year of the exiled members of the latter family. The reconciliation, however, was preceded by reports of a plot to assassinate the new Druk Gyalpo before his coronation could take place and to set fire to the Tashichho Dzong (Fortress of the Glorious Religion, the seat of government in Thimphu). Yanki (who had four children with the Druk Gyalpo, including two sons, between 1962–1972) was the alleged force behind the plot, which was uncovered three months before the coronation; thirty persons were arrested, including high government and police officials. However, Lawrence Sittling, secretary to Jigme Dorji Wangchuck, later reported that the assassination plot was a fabrication by a Chinese diplomat designed to alienate Bhutan from India. But the truth was not any more politically acceptable—those arrested were Tibetan Khampas rebels, trained in India, who were traveling through Bhutan on a mission to Tibet. (Encyclopaedia of Saarc Nations, Syed) Under pressure from China, the Bhutanese government demanded that the four thousand Tibetan refugees living in Bhutan either become Bhutanese citizens or go into exile. Most chose exile. (Syed)  When civil war broke out in Pakistan in 1971, Bhutan was the first nation to recognize the new government of Bangladesh, and formal diplomatic relations were established in 1973. An event in 1975 may have served as a major impetus to Bhutan to speed up reform and modernization. In that year, neighboring Sikkim's monarchy, which had endured for more than 300 years, was ousted following a plebiscite in which the Nepalese majority outvoted the Sikkimese minority.