The harmful effects of air pollution are widely known. It contributes to heart, lung and brain related diseases and is a major cause of deaths in developing countries. According to a recent study, risk of diabetes has significantly increased due to air pollution. This happens when fine particles or particulate matter (PM) less than 2.5 microns or PM-2.5, present in the polluted air, enters the blood stream. These tiny particles are highly toxic and cause liver damage, thus increasing the risk of diabetes.