U

2. 1.Caste
 Food habits
 Inferiority complex
 Cultural practices
 Superstitious beliefs
 Consanguineous marriage
 Religious sentiment

3. 2.Class
 Educa on
 Occupa on
 Nutri on
 Residence
 Economic
 Way of living

4. 3.Race
 Skin problem
 Genetics
 Physical conditions
 Geographical conditions