The top 10 London boroughs with the largest population increases caused by international migration have been revealed in official data.Tower Hamlets, Islington and Camden top the list – with projected population increases of 20.38 per cent, 13.3 per cent and 13 per cent respectively.Tower Hamlets is expected to be the fastest growing local authority in the UK.By comparison, the average population increase across England is 6.5 per cent.