New Delhi: "My mind, my brain is all okay," sacked Commonwealth Games Organising Committee chief Suresh Kalmadi, who is in Tihar jail since May in connection with the CWG scam, on Thursday said refuting reports that he is suffering from dementia, a disease related to memory loss.

67-year-old Kalmadi was taken to the All India Institute of Medical Sciences on Thursday morning to undergo tests to confirm whether he was suffering from dementia.

"He has been taken to the neurology department at AIIMS at 9 am," AIIMS spokesperson Sunil Gupta said.

Coming out of the hospital after over four hours, Kalmadi said, "Five years ago I had undergone an operation of the heart valve. Whatever the problem is, it is of the heart and nothing else... My mind, my brain is all ok."

"I remember everything and there should be no doubt about it. Whatever problem is... is regarding my heart. A lot of treatment is being done for that," Kalmadi said.

He had earlier undergone an MRI scan on 19 July at Lok Narayan Jai Prakash Hospital where the tests revealed that he was suffering from dementia which gradually affects cognitive functions of the person affected by it.

The test results stated in medical jargon, "diffused cerebral atrophy with old ischemic changes in brain parenchyma with calcified granuloma in caudothalamic groove on left side (of his brain)".

Kalmadi was accompanied by Tihar Jail authorities as he went for the health check-up at AIIMS. He claimed all reports stating that he was suffering from dementia were wrong.

"I am perfectly all right. All that you are reading outside is wrong. I have come for a routine check-up," he said.