Background: Hypotension is the most prevalent adverse effect of spinal anaesthesia for caesarean section, which demands specific prevention and treatment interventions. Present study was aimed to study correlation of symphysio-fundal height and abdominal girth with incidence of hypotension in caesarean section following spinal anesthesia.Material and Methods:Present study was single-center, Cross sectional study, conducted in pregnant women of age 19-35 years, height 151-170 cms, full term gestation, undergoing elective and emergency caesarean section under spinal anaesthesia. Results: In present study, total of 87 patients were included. Hypotension was present in 70.1% of the patients. 52.3% of patients with SFH of 32-35cms and 88.4% of patients with SFH of 36-39cms were hypotensive. The p-value was statistically significant (p=0.001). 55.1% of patients with AG of 86-95cms and 89.5% of patients with AG of 96-105cms were found to be hypotensive. Mean total dosage of rescue ephedrine in SFH 32-35cms was 7.91±2.86. Mean total dosage of rescue ephedrine in SFH 36-39cms was 11.05±5.13. Mean total dosage of rescue ephedrine in AG 86-95cms is 8.54±3.86. Mean total dosage of rescue ephedrine in AG 96-105cms is 10.94±5.13. We found negative correlation between SFH and SBP with ‘r’ = -0.389 which is found to be statistically significant and 13.11% patients required atropine. Conclusion: In patients undergoing elective and emergency caesarean section under spinal anaesthesia the symphysiofundal height and abdominal girth showed significant negative correlation with systolic blood pressure.