After Maharishi Mahesh Yogi died earlier this year, Deepak Chopra wrote a lengthy description of his relationship with MMY and describes a period when MMY had a health crisis and almost died. The story can be found at the following link:
The Maharishi Years - The Untold Story: Recollections of a Former Disciple
Recently, a student at Maharishi University of Management, who publishes a blog called You Are Enlightened, received a letter from an Indian physician who was present when MMY was ill and disputes Chopra's description of what happened:
Response to the Truth About Maharishi and Deepak Chopra
Both postings are worth reading for what they reveal about MMY and Chopra.