A Paan is a leaf from a creeper called the Paan creepers. There are different types of Paan creepers. These different types of Paan leaves are made into many different varieties of Paan by adding various different ingredients and then folding into triangular shaped Bidas.

THE TRADITION
Paan was invented by Scholars of Aruvedas with the help of Dhanvantari thousands of years ago after taking experiment on rats. Paan was found out good for digestion Even reference of Paan is found in Shrimad Bhagavatam as Lord Krishna used to chew. This evidence is of 5000 years ago. In olden days women used natural elements for makeup and cosmetics. Queen Noorjehan discovered that by adding some particular ingredients to the Paan and eating it gives a beautiful natural red colour to the lips. So along with it's taste the Paan was eaten by women for reddening the lips.