In Hinduism, "Kali Charan" typically refers to the footprints of Goddess Kali. Devotees often use these footprints as an object of reverence during worship. Such footprints are usually made from various materials like clay, metal, or stone, including brass. Brass is a popular material for making religious artifacts and statues due to its durability and attractive appearance. The footprints are usually placed on a small plate or in a designated area, and devotees may offer flowers, incense, and other symbolic items as a gesture of respect and devotion.