Concerning polyandry, Mr. Anantha Krishna Iyer states that "among the Kaniyans, as well as among Panikkans, polyandry largely prevails. If the young woman is intended to be the wife of several brothers, the eldest brother goes to the bride's house, and gives her the cloth, and takes her home the next day along with her parents and relations, who are all well entertained. The young woman and the brothers are seated together, and a sweet preparation is given to them, which signifies that she has become the common wife of all. The Kalari Mūppan (Nāyar headman of the village) also declares her to be such. The guests depart, and the bridegroom (the eldest brother) and the bride are invited to what they call virunnu-oon (sumptuous meal) in the house of the latter, where they stay for a few days. The bridegroom then returns home with the wife. The other brothers, one after another, are similarly enter- tained along with the bride at her house. The brothers cannot afford to live together for a long time, and they go from place to place, earning their livelihood by astrology. Each brother is at home only for a few days in each month; hence practically the woman has only one husband at a time. If several of them happen to be at home together for a few weeks, each in turn associates with the woman, in accordance with the directions given by their mother."
The Kaniyans follow high-caste Hindus as regards many of their ceremonies. They have their name-bestowing, food-giving and tuft-making ceremonies, and also a superstitious rite called ittaluzhiyuka, or exorcism in child-birth on the seventh or ninth day after the birth of a child. A Kaniyan's education begins in his seventh year. In the sixteenth year a ceremony, corresponding to the upanayana of the higher castes, is performed.