Chunari Chaudas is a significant observance in Jainism, particularly among the Jain Shravaks (lay followers). It falls on the fourteenth day (chaudas) of the dark fortnight (Krishna Paksha) of the Hindu lunar month. The term "Chunari" refers to a type of cloth, but in this context, it is symbolic.

On Chunari Chaudas, Jains especially remember to be vigilant against negative influences, inner impurities, and evil tendencies (known as "churni" or "chunari" in some Jain texts). The day is dedicated to introspection, self-control, and spiritual cleansing. Traditionally, it is considered an auspicious day for performing pratikraman (ritual confession and repentance), fasting, and other religious practices aimed at purifying the mind and soul.

Some traditions also associate Chunari Chaudas with rituals to ward off negative energies and to strengthen one's resolve against bad habits or thoughts. In certain regions, it is also linked to specific local customs or observances, such as offering prayers to ward off obstacles on the spiritual path.

In summary, Chunari Chaudas is a day of spiritual vigilance and purification for Jains, emphasizing self-restraint and the removal of inner impurities.