Apart from religious benifits which we call it sunna ,,, There are scientific advantages in this. BTW circumcision not only does by muslims alone even jews and chris also do in west i dont know about india,,,,,,,, The hygienic value of circumcision has today been generally conceded, and some physicians recommend the operation as a routine measure for all male infants, it is part of the routine of bathing an uncircumcised boy, to draw back the foreskin and sponge the head of the penis. This is for general cleanliness and also to remove pasty white secretion called smegma, which accumulates under the foreskin and may lead to local irritation unless it is regularly cleansed. Whenever a new born is found to have a tight foreskin (phimosis), the physician usually recommends circumcision.