This is the case of a 40-year-old lady diagnosed with chronic psychotic illness, with onset at the age of 35 years. She presented with a 5-year history of social withdrawal, poor speech output, amotivation, decreased self-care, occasional muttering to self, and impaired functioning in social and family context. Her history revealed that she had a continuous illness with exacerbations characterized by predominant catatonic symptoms of poor speech output, standing in a particular posture for prolonged periods. On admission, she was found to be nearly mute, had posturing, interacted very little with others and had impaired self-care. There was no history suggestive of pervasive mood symptoms during this time. She was never treated with psychotropic drugs in the past. Family history was not significant; premorbid personality revealed schizoid personality traits. General physical examination was within normal limits. Hemogram and metabolic profile did not show any abnormality. Bush Francis Catatonia rating scale (BFCRS) score and Brief Psychiatric Rating Scale(BPRS) score at admission were 9 and 37, respectively. CT of the brain revealed a large cavum septum pellucidum. There were no other abnormalities detectable in the form of focal findings or significant volume loss.