19 Strange Things That Can Only Happen in India

Most important of all, 'Zero' as in digit 0 was invented in India. If that helps.

12 and 15 are not exclusive to India. China and Mexico also have a huge pollution problem as do several Arab nations to name a few. Also, pollution levels are not the same as smoking 100cigarettes. Maybe more like 5-10. It's way over exaggerated. Also, Children's day is celebrated in China in June.