Kahn visited Sri Lanka from October 26 to 28 last year and the money was paid over a six-month period.
Sri Lanka also spent a whopping 4.7 million US Dollars which it paid to a public relations company in Britain called Bell Pottinger) to boost its international image.
The money was paid seeking the support of the United Nations, European Union and British officials.
There is also an issue concerning expenses for a British-Sri Lanka inter-parliament delegation.