Mangala sutram literally means "an auspicious thread" which is knotted around the bride's neck. It is usually a necklace with black beads strung from a black or yellow thread prepared with turmeric. Sometimes gold, white or red beads are also added to the mangala sutram, depending on regional variation. It is a symbol of marriage worn by women.
Significance
The significance of the mangala sutra was re-iterated by Adi Shankara in his famous book Soundarya Lahari. According to Hindu tradition, the mangala sutra is worn for the long life of the husband. As told by religious customs and social expectations, married women should wear mangala sutra throughout their life as it is believed that the practice enhances the well-being of her husband.
Regional variations
It is called, thaali, maangalyam in Tamil, nuptial chain in English, thella in Sinhala, mongolsutro in Bengali, mangal sutra in Marathi, mangalyasutra, thaali in Kannada, and thaali, maangalyamu, mangalasutramu or pustelu in Telugu, thaali in Malayalam, Mangalasutra, Konkani people wear three necklaces around their necks, referred to as dhaaremani or muhurtmani, mangalasutra with one or two gold discs and kasithaali with gold and coral beads. In Kerala, a Christian version of the mangalsutra is called a "minnu". In Andhra Pradesh and Telanganaregions, the two coin-sized gold discs are separated by 2-3 beads of different kinds. By tradition, one disc comes from the bride's family and another from the groom's side.
Designs
Mangala sutras are made in a variety of designs. The common ones are the Lakshmi thaali, pustelu worn by the Telugus, ela thaali or minnu worn by the Malayalees and the kumbha thaali worn by the tamilians of the Kshatriya caste. The design is chosen by the groom's family according to prevalent customs. Gujaratis and Marwaris often use a diamond pendant in a gold chain which is merely ornamental in nature and is not a substitute to the mangala sutra in the traditional sense. Maharashtrians wear a pendant of two vati ornaments. The mangalya, thaali or mangala sutra of Kannidagas is similar to that of the Maharashtrians, except that it usually has two vatis. Nowadays many fashion conscious families opt for lighter versions, with a single vati or more contemporary style.