Dhanteras 2024: Why 13 Diyas Should Be Lit On This Day? Know More About Placement Of These Diyas To Invite Luck And Prosperity. Dhanteras, also called Dhantrayodashi or Dhanvantari Jayanti, marks the beginning of the festive season and arrives two days before Diwali. On this auspicious day, lighting diyas is a treasured Hindu tradition symbolising positivity while warding off negative energies.