"His condition has deteriorated since Wednesday and he is unable to maintain his oxygen level in spite of maximum treatment. He continues to remain in the ICU (intensive care unit)," Neeraj Jain, senior consultant and chairman of pulmonolgy (chest medicine) at Gangaram Hospital in central Delhi, had said.
http://www.ummid.com/news/2011/September/22.09.2011/tiger_pataudi_dies.htm
http://www.ummid.com/news/2011/September/22.09.2011/tiger_pataudi_dies.htm