The unresolved UK immigration cases backlog has reportedly grown to more than 500,000, Members of Parliament said.
The Home Affairs Committee said that it could take 37 years to clear so many cases.
BBC reports that the UK Border Agency has been a troubled organisation for many years, which is why the home secretary took the decision to split the agency in March this year.
According to the report, the new UK Visa and Immigration Service has a clear focus to improve visa performance and customer service. While the Immigration Enforcement command concentrates on those who break our immigration laws.
The committee chairman, Keith Vaz, said that the 12th backlog of 190,000 files called the 'Temporary and Permanent Migration Pool' has brought the backlog of cases now hit a staggering half a million people.
