Kalava is the sacred Hindu thread also called mauli or charadu in Hindi. It is tied by a priest or an older family member, typically grandparents or parents on the wrists of all the people attending the prayer ceremony. The Kalava is tied on the right wrist of men and unmarried women and on the left wrist of the married women. Cotton strings in form of yarn in full red are most common as is red with small bits of yellow, however, other dye combination exist. It sometimes has knots which are tied up while reciting sacred mantras to invoke Satvik state of human nature and is worn to ward off evil from the person who wears this red thread. A stylised form of the Kalava is used for the holiday of Raksha Bandhan.
Kalava is a 1932 Tamil language film directed by P. P. Rangachari. It was the first Full-length Talkie made entirely in Tamil. The film was based on a play about Arjuna, one of the Pandavas.