Background: Thyroid disorders are the most prevalent disorders in India, next to diabetes mellitus. Approximately, 42 million people in India are suffering from thyroid disorders. India has the world’s biggest goiter belt in sub-Himalayan region. There is close relationship between body composition and thyroid hormone. In women, the risk of developing hypothyroidism increases with age, during pregnancy, the postpartum period and menopause. This research work has been approved by Institutional Ethical Committee, IIMS&R with consensus in the meeting dated 30th January 2019. Aim: The present study is undertaken to find the level of TSH in euthyroid and hypothyroid women. Material and Methods: Sample size was 60 females. Based on inclusion and exclusion criteria, blood samples were collected under aseptic conditions, Serum TSH (mIU/l) estimation was done using mini vidas fully automated analyser (fluorescent method) in central pathology of IIMS&R, Lucknow. Revised BMI guidelines for India by WHO was used to calculate BMI. P value <0.05 was considered significant. Results: The result indicated that the mean value of BMI, serum TSH was higher in hypothyroid women than in euthyroid women. Mean value of BMI that is (27.97±4.25) was higher in hypothyroid women than euthyroid women (23.98±4.38). Conclusion: Present study concluded that a hypothyroid woman has higher BMI as compare to euthyroid women and there is a positive correlation between serum TSH and BMI