On Thursday 27th November, 'A National Awakening Day' will be held at the ExCel centre in which over 25,000 people from the capital's Tamil community will gather to commemorate those who have lost their lives in Sri Lanka's ongoing conflict.
Critics of the event, including Sri Lanka's ambassador to Britain, say it commemorates suicide bombers, is in clear violation of British anti-terror legislation and is run by groups which raise funds for the Liberation Tigers of Tamil Eelam (LTTE) aka the Tamil Tigers.
They also say the annual event acts as a 'springboard' for indoctrinating young British Tamils against the Sri Lanka's ruling Sinhalese and this helps drives funding to the LTTE.
The fact that last year's event featured a video speech from the Tamil Tiger's leader Velupillai Prabhakaran in which he praised the group's suicide bombers, does little to detract from the view.
But Tamil groups argue that it is their right to mourn the thousands of Tamils killed in Sri Lanka and many regard Prabhakaran as a 'hero'. A classic example of one man's terrorist being another man's freedom fighter.
Nevertheless he is on Interpol's most wanted list.
The Metropolitan Police have given the event the green light, but will have officers at ExCel observing (with Tamil interpreters) to make sure no laws are broken.
This week I spoke to a friend who has worked in community cohesion for several years and closely with London's sizeable Tamil community and he said to me; "the Tamil people have faced severe oppression over the past 60 years and they should be able to mourn their loved ones."
" I see nothing wrong with this event," he insisted - and this view is obviously shared by the management of the ExCel, the Metropolitan Police and the Home Office.
There is no question that a gathering openly supporting al-Qaeda and featuring a speech from Osama Bin Laden would not be permitted in London and the Tamil Tigers are a proscribed terrorist organisation in the UK.
Can there be one rule for them and another for the rest?

