White Cotton Janeu, also known as the sacred thread, holds significant religious and cultural importance in Hinduism. It is traditionally worn by individuals of certain castes during specific rituals and ceremonies. The thread used for the Janeu is typically made of pure cotton and is referred to as "Dhaga" in Hindi. Heres some information regarding the White Cotton Janeu and the pure cotton thread Dhaga:

1. Ritual Significance: The White Cotton Janeu is considered a sacred thread that represents the initiation and acceptance of certain religious responsibilities. It is traditionally bestowed upon individuals during their Upanayana ceremony, a rite of passage marking their entrance into the stage of learning and spiritual development.
2. Symbolism: The Janeu symbolizes the connection between the wearer and the divine. It is believed to be a sacred bond between the individual and their chosen deity, reinforcing their commitment to spiritual values, knowledge, and moral conduct.
3. Material and Construction: The thread used for the White Cotton Janeu is typically made of pure cotton. Cotton is preferred due to its natural properties, softness, and purity. It is believed to represent simplicity, humility, and a close connection to nature.
4. Three Strands: The Janeu usually consists of three strands of cotton thread, which are twisted together to form a cord. Each strand represents various aspects of Hindu philosophy, such as the Trimurti (Brahma, Vishnu, and Shiva) or the three Gunas (Sattva, Rajas, and Tamas). The three strands signify the unity and interdependence of these elements.
5. Customary Wear: The White Cotton Janeu is traditionally worn diagonally across the torso, from the left shoulder to the right side of the waist. It is usually hidden beneath the upper garment, symbolizing the personal commitment to spiritual practices and the observance of prescribed duties.

Its important to note that the White Cotton Janeu and the use of pure cotton thread Dhaga hold cultural and religious significance within Hinduism. The specific practices, rituals, and customs associated with the Janeu may vary across different regions and communities. Its recommended to consult with knowledgeable religious authorities or cultural experts to understand the specific traditions and guidelines related to the White Cotton Janeu and its associated Dhaga in your particular context.