In the late 1940s, newly emerging pro-democracy movements and political parties in Nepal were critical of the Rana autocracy. Following the success of Indian Independence Movement which Nepalese activists had taken part in, with India's support and cooperation of King Tribhuvan, Nepali Congress was successful in toppling the Rana regime, establishing a parliamentary democracy. After a decade of power wrangling between the king and the government, King Mahendra (ruled 1955–1972) scrapped the democratic experiment in 1960, and a "partyless" Panchayat system was made to govern Nepal. The political parties were banned and politicians imprisoned or exiled. The Panchayat rule modernised the country, introducing reforms and developing infrastructure, but curtailed liberties and imposed heavy censorship. In 1990, the People's Movement forced King Birendra (ruled 1972–2001) to accept constitutional reforms and to establish a multiparty democracy.