Be it tobacco or hookah smoking the fact that it is injurious to health can't be overlooked. But if statistics are to be believed around 6 million Indians die every year due to tobacco smoking. And the doctors have always been emphasising on the ill-effects of tobacco smoking. As the theme for this year is 'tobacco - a threat to development' here is what doctors have to say this World No Tobacco Day. Dr Rajesh Chawla Senior Consultant Respiratory and Critical Care Indraprastha Apollo Hospitals Delhi: Lung cancer has gone up by 600 times since 1950 and factors like air