04 September,2012 08:32 AM IST | | Agencies
Andrew took half an hour to descend from the 87th to the 20th floor of the skyscraper to raise money for the Outward Bound Trust and the Royal Marines Charitable Trust Fund.
The 52 year-old prince raised £290,000 (Rs 2.55 crore) in sponsorship. "I'm not even going to say that was a piece of cake or not," he said afterwards. "I will never do it again."u00a0
