Pious Mannan tribes have got a plethora of hill gods, which these Mannan tribes worship with lots of devotion. All the hill gods comprise of the spirits of their ancestors who are thought to have came down from the mountain regions. However, in the present times, these Mannan tribes have rightly incorporated several practices due to the influence of several other people of the urban society. This resulted in their worship of several other gods and goddesses of other religion.
Most of these Mannan tribes have taken up the occupations of gathering sandalwood and rose woods. These Mannan tribes also are seen to create farms and practice cultivation over the years. Some Mannan people also have taken up honey-collecting, fishing, and cattle breeding as their occupations.
The whole of the Mannan society is based on rural economy and culture. Almost all villages of Mannan tribes comprise of ten to forty five households. Each house is built on the slopes of the mountains just in between the agricultural fields. Most of the houses built with handmade bricks and the roof with leaves .The Mannan village also comprises of tiny bamboo made houses, mostly covered with cashew and are canut trees.
The Mannan people generally speak in Malayalam or Tamil language. In each village, the Mannan tribes have chosen two representatives for the village. These include a village leader namely Thalaivar, while the elder person of the village is called Kani. Thalaivar acts as an intermediary between the government and people, while the kani has been given the responsibility of dealing with some of the significant affairs related to the tribal society. On some important social, both of them came and play the leadership role on several matters.
The society of this Mannan tribe follows unique norms and rituals, specially related to marriage. When girls attain thirteen years they are being segregated from their families and are forced to stay in seclusion in huge tents which is known as inn, namely, Sathram. All the aged women look after these inns. These Mannan girls have to remain there till their marriage. There are facilities of burning fire inside these tents and the fire remains illuminated through out the day and night in the centerfield of the hall. Around the fire these Mannan girls sleep stretching mats on the floor. However, in some of these tents of these Mannan tribes, special platforms are built from bamboo. In some inns there are sitting platforms made up of bamboo. For young males, there are individual 'sathram' who are more than twenty years old. Just like the girls, the aged men look after these young Mannan males.
Marriage too is held in high esteem. When a Mannan girl attains the age of thirteen years, she is considered to be ideal for getting married. Special rituals are observed at the time of wedding. Those Mannan girls who are ready for marriage remain hidden in the forests. After getting the information, the prospective groom comes out of the inn and search for the girl. The first male who can find her can marry the girl. The girl too gives her acceptance by sprinkling turmeric water. This symbolizes the fact that both the Mannan couple is now ready to tie the wedding knots.