Every year the day is observed on the second Wednesday of March.
It aims to spread awareness about the adverse impacts of smoking and to encourage people to quit the dangerous habit.
This day was first observed on Ash Wednesday in 1984.
Tobacco is a deadly cocktail of over 60 carcinogens, including polycyclic aromatic hydrocarbons (PAHs), aromatic amines, volatile organic hydrocarbons, and various metals.