Sir: Today, almost everyone knows that smoking is extremely injurious to health, yet the number of smokers is increasing day by day. More and more young people are becoming addicted to smoking. Nowadays, it has become a common practice among students living in hostels of universities that they openly indulge in smoking on the educational premises. A majority of students take to smoking just to have some fun, oblivious of the dangers associated with this pastime. I appeal to the concerned authorities to ban smoking in the vicinities of universities and hostels as well as public places. AZIZ HASIL Quetta