Grammar or Grammatical syntax forms the crux of the language. Grammar is an essential one not only in Tamil but also for all the world languages. Tamil language is one of the oldest surviving languages in the world. Any language can be refined language provided that language will be spoken by a large group of people and also it should heaviest own literariness. Among the languages spoken in India Tamil, Telugu, Konda, Tulu and Coorg forms the Dravidian linguistic family group. They are identified as the refined languages from the Dravidian group. Both the language and the literatures contributes languages. There are lot of literary works and linguistic works and linguistic works are published during the various time periods. There are various literary works are published after the Publication of Tholkappiam. These literary marvels Portrays the lifestyle, culture, tradition and socioeconomic setup of the people. Those literary works distinguishes the lifestyle and social practices of that people as ‘Agam’ and ‘Puram. Though this we can easily identify that the people follow both ‘Agam’ and ‘Puram’ form of lifestyle. Events containing private affairs are confrains as ‘Agam and War, Valour, Pride and charity forms the ‘Puram’. Tamil Grammar is divided into Agapporul and Purapporul. Literary works based on Purapporal focused on the events based on outer lifestyle of the people. Purapporul can be identified as Seven and Twelve. Vetchithinai is defined as the capturing of cows and cattle breeds. The formation or the beginning of the Vetchithinai is because of the competition between the other two thinais like ‘Palai’ and ‘Mullai’. We can assumed that Vetchithinai is formed based on this competition. This research article clearly shows the difference between the Vetchithinai which is portrayed in Tholkappiam and the Vetchithinai which is portrayed in Purapporal Venbamalai and its developments in that thinai
