The term Chettiar caste in South India belongs to the mercantile caste. Especially in the states ofTamil Nadu and Kerala this caste is found. They come under theVaishya Varna which comes within Vedic division of caste. The Chettiars are considered as an intelligent caste and they have been attributed with the concept of double bookkeeping in accounting. They are high performers in maintaining financial details. They have also brought organized banking in the country. This community is quite hardworking and innovative and in almost every kind of business, they have formed a base. Whether it is agricultural land or anyother business, they have a great stake in building those sectors in Southern part of Tamilnadu.Except Tamilnadu in other parts of South India too, Chettiar title is used. It is derived from a trading social group. This Chettiar community is known in the name of Chetty in different places of South India and they are found among both Tamils and Telugus. Though the typical Chetty is conceived to be a trader community, various non-merchants also use this surname. In rituals they follow Hinduism and basically all their traditions are South India based. Particularly their marriage ceremonies are based on South Indian culture. Generally like many south Indian marriages, the grooms prefer to marry within their relations. In Chettiar marriages, the groom's first choice is to tie the knot with his sister's or maternal uncle's daughter. Like many Hindu rituals, the engagement ceremony is vital in Chettiar marriages. Nichadartham or engagement ceremony is quite important event where an engagement agreement is drawn up by the priest and it is given to the two families. The other important event of the ceremony is to tie "thali" or mangalsutra in the neck of the Chettiar bride. And this belongs to the South Indian culture.