Aneurysmal subarachnoid hemorrhage (A-SAH) , despite improvement in surgical and medical treatments, is still a serious disease with high case fatality and morbidity rates.1,2 Despite the huge advances made in neurosurgical management of the disease, there has not been proportional improvement in outcome of this condition. Our goal in the present study is to study the following factors – World federation of neurosurgical societies(WFNS),Hunt & Hess(H&H) and Fisher grade, size of aneurysm, intra operative rupture(IOR), temporary clipping(TC) – and to try to find their individual impact in final outcome. We studied 100 operated patients of aneurysmal subarachnoid hemorrhage prospectively. Their post operative course was followed and final outcome was studied. Pre operatively, higher WFNS and H&H grades had a worse outcome. However, this correlation was not found for Fisher grade. Nonetheless, presence of IVH(Fisher grade 4) acted as an independent risk factor for poor outcome. Diabetes and smoking led to a worse outcome in contrast to hypertension. IOR led to poor outcome while temporary clipping did not.