Pheochromocytomas are rare tumors which most commonly present with paroxysmal hypertension, headache, diaphoresis and palpitation. Very rarely, they are diagnosed incidentally on abdominal ultrasound or CT scan done for some other purpose, following which rose urinary and plasma levels of catecholamines and metanephrines are discovered. Some small tumors are non-secretory,  clinical asymptomatic  and are resected uneventfully without any haemodynamic fluctuations intraoperatively. We report a rare case wherein the patientwas asymptomatic, with normal endocrinology, diagnosis was non-secretory  suprarenal tumor  but  there were wide fluctuations in blood pressure and heart rate corresponding to handling of tumor mass. On histopathology, the tumorturned out to be a malignant pheochromocytoma.