INTRODUCTION: Obesity is a complex condition involving biological, psychological, socio cultural aspect. This exploratory study is aimed to offer insight into the psychological causative factors of obesity.

MATERIAL AND METHODS: This prospective cross–sectional case–control study was conducted at Shree Krishna Hospital from January to October 2013.Individuals >18 years and BMI > 23 were cases. BMI of < 23 were taken as controls. 63 cases and 49 control were evaluated for their behavioural profile as per the Performa and Questionnaires

RESULT AND ANALYSIS: Biochemical profile of the patients revealed that Normal, Preobese and Obese had no significant difference in their biochemistry. Psychological profile of the patients studied revealed that 80% of patients had their Locus of food control External, 28% had mild stress, 8% had severe depression, and 14.2% were Impulsive.Statistical analysis revealed that there was no statistical correlation between BMI and Biochemical and Psychological parameters.

CONCLUSION: the psychological abnormalities should precede biochemical, anthropometric abnormalities. Keyword: obesity, psychological.