This Book is Related to Comparative analysis of Quality of Milk. Milk is an important part of living organism diet. The milk which is available in market is not of good quality so we do comparative analysis to check all milk qualities in different aspects such as protein concentration, hazardous substance adulteration, Fat, Water content, Lactose and Total solid content. We use different brand of Commercially availables milk to check adulteration in different aspects such as glucose concentration, sugar content, fat adulteration etc. In point of fact they are all Tea whiteners with different Fat Percentage such as Haleeb 3.52, Milk pack 3.52, Olpers 3.53, Dairy Queen 6.31, Vania 3.51, Taza dum 6.10, Everyday 6.2, Good milk 3.50, Nur pur 3.5, Tarung 6.24 and different protein percentage such as Haleeb 2.79, Milk pack 2.94, Olpers 2.45, Dairy Queen 2.65, Vania 2.85, Taza dum 2.47, Everyday 2.66, Good milk2.55, Nur pur 1.88, Tarung 2.06.