Introduction: Hypertensive disorders complicate 5-10 percent of all pregnancies and contributes greatly to maternal and fetal morbidity and mortality. Women with gestational diabetes are at increased risk of preeclampsia and worsens the fetal prognosis. Thyroid hormones seem to be important in placentation and regulation of early pregnancy, partly explaining the association between hypothyroidism and preeclampsia. Incidence of both hypothyroidism and gestational diabetes was found significantly higher in women with Preeclampsia Induced Hypertension. There are few studies worldwide to establish the association between Preeclampsia, gestational diabetes mellitus and hypothyroidism in pregnancy. Objective: The objective of this study was to determine the association of dual endocrinopathy in pregnancy with severity of preeclampsia. Study Design: Prospective Observational Cross-sectional Study Material and Methods: 400 patients who met inclusion criteria and consented for the study were recruited in the study from November 2015 to October 2016 in the Department of Obstetrics and Gynaecology , SMGS Hospital, Govt Med College Jammu. All patients underwent relevant blood and urine tests. They were grouped into 2 groups – mild and severe preeclampsia. The association of two groups with dual endocrinopathy (hypothyroidism and gestational diabetes mellitus) was studied. Statistical analysis: Chi-square test was employed to determine association of dual endocrinopathy with severity of preeclampsia. P-value less than 0.05 was considered statistically significant. Results: In this study, majority of patients i.e. 70.50% (282 out of 400) were in the mild preeclampsia group and only 29.50% (118 out of 400) were in the severe preeclampsia group. According to present study, 14.4 % of severe preeclampsia patients had dual endocrinopathy while only 7.8 % of mild preeclampsia patients had dual endocrinopathy. This association was calculated using Chi-Square Test and was statistically significant (P value = 0.042). Conclusion: We found that there exists significant association of dual endocrinopathy with severity of preeclampsia. Therefore the current study emphasise that early identification of dual endocrinopathy in patients of preeclampsia ,so timely treatment might decrease the morbidity associated with preeclampsia