Dhanteras, also known as Dhanatrayodashi or Dhanvantari Trayodashi, is an important Hindu festival in India. Celebrated in October or November, it marks the start of the five-day Diwali festival. The day is dedicated to worshiping wealth, prosperity, and well-being. It involves various customs and traditions aimed at invoking the blessings of Goddess Lakshmi and Lord Kubera.