Solution:

• The Nair Service Society was formed on 31 October 1914 as a reaction to perceived communal slights in the princely state of Travancore in southern India, which now forms a part of the state of Kerala.
• At the time of formation, K. Kelappan was the president and Mannathu Padmanabhan was the secretary.
• Nairs were the most economically and socially dominant community, as well as the most numerous, in what was traditionally a staunchly Hindu kingdom that rigorously and officially enforced distinctions between castes.
• Some Nairs had felt provoked by the rise to prominence of the Saint Thomas Christians during the era of British rule and whose members were being elected as chairs of various official bodies during a period when the political systems were being modified.