Anaesthesia for parturient patients with dwarfism is an uncommon problem faced by anaesthesiologists. There is an ongoing debate regarding general versus regional anaesthesia in these cases. In many centers there is lack of facilities for epidural or continuous epidural anaesthesia. A primiparous dwarf woman of 27 years old having 124 cm height and 37 kg weight was admitted in Mymensingh Medical College Hospital for elective cesarean section due to cephalopelvic disproportion. She was diagnosed as a case of pituitary dwarf previously on antenatal checkup depending on both clinical and endocrine ground. After admission she suddenly developed respiratory distress with less foetal movement and presented in our department for emergency cesarean section. We have managed the case by sub-arachnoid block (SAB) using 7.5 mg (1.5 ml) of 0.5% heavy bupivacaine at a level of L3-L4 interspace having adequate level of block and analgesia. The case was managed successfully and uneventfully. In this presentation, the role of SAB and a management guideline has been highlighted.