Introduction: The pandemic of vitamin D has been reaching new heights ever year. Over a billion people are affected by vitamin D deficiency or VDD. Most countries have reported to have 30-50% of the population with VDD. Meanwhile hypothyroidism in India is about 30%. There are many reasons for the occurrence of hypothyroidism, Out of which the deficiency of vitamin D may be one. Sampling: CONTROLS: - A total of 30 serum samples of healthy people were taken who had normal levels of all thyroid parameters and normal levels of vitamin D. TEST: - A total of 30 serum samples of patients suffering from hypothyroidism who also had deficient amounts of vitamin D in the serum were collected. Methodology: Serum samples of patients and controls were taken by centrifugation and removal of formed elements of the blood. This serum is then put in a machine- Cobas e 601 in which many hormones and vitamins can be measured. This machine works on the principle of chemiluminescence. This gives the approximate value of vitamin D and thyroid levels which can be used for study Results: A total of 15 women of ages 40-60 years and 15 men of 40-60 years were found to have a negative correlation between vitamin D and hypothyroidism levels in the serum. It was also observed that this is not a sex related disorder. Screening for vitamin D deficiency is recommended for hypothyroidism patients.