Dear Ramya, there are only 2 institutions offering M.Sc in Dairy Chemistry. NDRI and Anand Agricultural Universitu.
For admission in M.Sc Dairy Chemistry, you shpuld hold a Bachelor's degree with a minimum agregate of 60% in relevant subject from a Recognised University. The admissions are based on an Entrance Examination conducted by ICAR. This is All India Combined Examinations. Candidates are selected on the basis of merit in Entrance Examination and Counselling. For more information, please visit their official page at: http://www.ndri.res.in/ndri/Design/masters_programme.html