The Nair Service Society (NSS) is an organization created for the uplift and welfare of the Nair community. It was established under the leadership of Mannathu Padmanabha Pillai.^{[citation needed]} The NSS is a three tier organisation with Karayogams at the base level, Taluk Unions at the intermediate level and a central headquarters operating from Perunna in Kerala, India.

The Society owns and manages a large number of educational institutions and hospitals.

The Nair Service Society was formed in 1913 as a reaction to perceived communal slights in the region then known as Travancore, which now forms a part of the state of Kerala. Hindu Nairs were unhappy with the prominence of the Christian community, who held a status on a par with Brahmins and whose members were elected as chairs of various official bodies during a period when the political systems were being modified. The Nairs believed Travancore to be a Hindu state.

Expatriate Nairs both in other states of India as well as in countries other than India have formed Nair Service Societies in their states and countries of domicile. Examples are Karnataka Nair Service Society with 30 karayogams, Kanyakumari Nair Service Society with 27 karayogams and the Calcutta Nair Service Society.^{[citation needed]} These Societies of Non Kerala origin retain the cultural uniqueness of the Nairs at the same time adapting many practices to the times and country of their adoption.^{[citation needed]} Efforts are on to bring together all Nair groups the world over under an umbrella International Federation of Nair Societies.^{[citation needed]} N.S.S. has also formed a branch in Rajasthan (in Udaipur).^{[citation needed]} There is a branch of NSS in Dilanipur, Port Blair.^{[citation needed]} NSS Vidharbha, which unites Nairs living in the Vidharbha region of Maharashtra, is having branches in Nagpur and Chandrapur. The organisation is reported to have branches in many other parts of India.^{[citation needed]}

A society, or a human society, is a group of people related to each other through persistent relations, or a large social grouping sharing the same geographical or virtual territory, subject to the same political authority and dominant cultural expectations. Human societies are characterized by patterns of relationships (social relations) between individuals who share a distinctive culture and institutions; a given society may be described as the sum total of such relationships among its constituent members. In the social sciences, a larger society often evinces stratification and/or dominance patterns in subgroups.

Insofar as it is collaborative, a society can enable its members to benefit in ways that would not otherwise be possible on an individual basis; both individual and social (common) benefits can thus be distinguished, or in many cases found to overlap.

A society can also consist of like-minded people governed by their own norms and values within a dominant, larger society. This is sometimes referred to as a subculture, a term used extensively within criminology.

Kollam Kanjaveli Kuttilazhikathu Thulasidharan Nair is an actor in Malayalam cinema who is better known as Kollam Thulasi relating the name of his birth place Kollam to his first name as customary in Kerala. His first appearance was in Ezhuthappurangal (1987).He is well known for his unique acting style.He also appeared in many Television serials.He is also a poet.

He was born in 1945 to Kollam Kanjaveli Kuttilazhikathu P S Nair and Bharathi Amma. After completing Master's Degree in History, he pursued Diploma in journalism. In 1970 he entered Kerala Govt. Service. He currently resides in Valiyashala. Wife: Vijaya Nair, Daughter: Gayathri.