Armoured brain is a rare condition where dense calcification occurs over the 
brain. It can result in mass effect and raised intracranial pressure. Most 
often, it happens due to trauma, subdural effusion, infection, or after VP 
shunt. There is controversy in its treatment. Most published literature does not 
support removing the calcification. We describe a rare case of idiopathic 
chronic calcified subdural hematoma with relatively short history which was 
successfully treated by microsurgical removal of calcification over the brain. 
This resulted in complete expansion of the brain with relief in symptoms.