The technique for crafting this mirror, rather the mix required to create the reflective surface, is a closely guarded secret among the few artisan families living in the village of Aranmula. This craft has its origins in the Indus Valley civilization with folklore mentioning eight craftsmen and their families who came to work at the Parthasarathy temple. While working at the temple with different metals, the craftsmen discovered a special alloy that had sharp reflective properties. They found that it functioned like a mirror. The craftsmen presented the king with a crown with embellishments that included a mirror.
Pleased with their work, the king invited the families to stay back in Aranmula. Some of the craftsmen obliged and continued the art of making mirrors. Aranmula Kannadi is considered to be an auspicious element to have in the house as a symbol of prosperity and luck. It has received much recognition in recent times in efforts to keep this ancient craft alive. The Aranmula Kannadi received a geographical indication or GI tag in 2004-05. The department of tourism in Kerala has declared Aranmula a heritage village. A 45 cm tall Aranmula Kannadi is housed in the British Museum in London.