All Types of Brain Tumors like meningioma, Glioma Surgeries, Brain Aneurysm Clipping & Coilling Surgery, Trauma ( Head Injury ) Brain Haemorrhages like SDH, EDH, SAH , ICH , Emergency Craniotomy, Cranioplasty , Hydrocephalus V-P Shunting, Large CV Stroke - decompressive Craniotomy, etc