The majority of Buddhist monks belong to one of two primary monastic orders ( "gaing"): Thudhamma Nikaya (87.24% of Buddhist monks) and the more orthodox Shwegyin Nikaya (9.47% of Buddhist monks). Other minor monastic orders include the Dwara Nikaya in Lower Burma, and Hngettwin Nikaya in Mandalay, both of which have a few thousand member monks. There are nine legally recognised monastic orders in Burma today, under the 1990 Law Concerning Sangha Organizations. Burmese monastic orders do not differ in doctrine but in monastic practice, lineage and organisational structure.