Nowadays Tangsa follow a variety of religions. Traditionally their beliefs were animistic. One example of the animistic beliefs still practised is the
Wihu Kuh festival held in some parts of Assam on 5 January each year. This involves sacrifice of chickens, pigs or buffaloes and prayers and songs to the female earth spirit,
Wihu. This group believe in a supreme being that created all existence, locally known as
Rangkhothak/Rangwa/Rangfrah, although belief in other deities and spirits is maintained as well. Many followers of Rangfrah celebrate an annual festival called
Mol or
Kuh-a-Mol (around April/May), which asks for a bumper crop. Animal sacrifice, in particular the sacrifice of
wak ('pigs') and
maan ('cows'), is practised. At funerals a similar ceremony is undertaken and a feast between villagers is held by the bereaved family. After dusk, man and women start dancing together rhythmically with the accompanying drums and gongs. Some Tangsas, particularly the Tikhak and Yongkuk in India and many Donghi in Myanmar, have come under the influence of
Theravada Buddhism, and have converted. There are Buddhist temples in many Tikhak and Yongkuk villages. Most of the Tangsas, including most of the Pangwa Tangsas, and nearly all of the Tangshang in Myanmar, have accepted Christianity. Probably the most widespread Christian denomination in both Myanmar and India is Baptist. Tangsa Baptist Churches' Association with its headquarters at Nongtham under Kharsang sub-division is the largest Baptist Association working among the Tangsas with more than 100 churches affiliated to it[5], but there are also large numbers of Presbyterians in India, and perhaps smaller numbers of Catholics, Church of Christ and Congregationalists. Out of a total of 20,962 Tangsa (proper) living in Arunachal Pradesh, 6,228 are Animist (29.71%) and 5,030 are Hindu (24.00%). Most of the remaining are Christian (44%), with a Buddhist minority of close to 3%. There are another 8,576 Tangsa residing in Arunachal, belonging to fringe Tangsa groups such as Mossang, Tikhak and Longchang. The Mossang, Rongrang, Morang, Yougli, Sanke, Longphi, Haisa, and Chamchang (Kimsing)
ethnic groups are mostly Christian. Most of the Longchang and Langkai are Rangfrahites, while the Tikhaks are evenly divided into Christians and Buddhists. Taisen is majority Buddhist. The Moglum Tangsa are evenly divided between Rangfrah, Animists and Christians. The Namsang Tangsa are two-thirds Animist, with the remaining one-third Hindu. ==Language==