The dwellings of the workers called "line rooms" are situated a little further away from the factories. Those who are considered to be of higher castes occupy the first row of line rooms. They perform respectable jobs such as factory work and grinding of tea as minor labour work. Even though they belong to the labour category they are influential among conductors, tea makers, "kanganies" (or supervisors) and other officials. The workers considered low caste live in the dwellings that are away from the centre and these dwellings are called "distant" or "lower lines". This group consists of Pallar, Paraiyars, Sakkiliar, washers and barbers. The yard sweepers and changers of clothes are in the lowest rank. These groups follow the customs, traditions, and festivities of their South Indian Tamil ancestors. The traditional musical instruments such as "thappu" and "parai" are used and folk dances such as the "kavadi", "kummi" and "karaga attam" are performed. Folk dramas called "koothu" in their various forms such as "ponnar koothu", "sangaran koothu", "arujunan thabas" and "kaman koothu" are still prevalent among them along with "silambadi" as an important feature. In general they use Hindu beliefs to guide their day-to-day lives. There are number of temples and places of worship for deities on estates and in villages, towns and other places within Sri Lanka to which they have migrated. When a place is decided to be settled, the settlers would institute, under a banyan or bo tree, a triangular shaped stone or figure of a deity, plant a weapon of a popularly worshipped god such as a spear, trident or sword and worshipped these. The main deities worshipped are, in order of popularity, the goddess Mariamman, Murugan and his consorts, Valli and Theivanai, Pillayar, Siva, Parvathi, Vishnu and Laxmi, and the goddess of wisdom Saraswati. In 1981 about 90 percent of the Indian Tamils were Hindus. They have little contact with Buddhism, and they worship the Hindu pantheon of gods. Their religious myths, stories of saints, literature, and rituals are distinct from the cultural sources of the Sinhalese. Furthermore, a minority of the Indian Tamils- 7.6 percent are converts to Christianity, with their own places of worship and separate cultural lives.