Ukip will promise on Monday to ban the burka from being worn in public as it shelves a rebrand that was planned before the election.

The party’s first election manifesto pledges will be based on its an “integration agenda” aimed at its core supporters.

Sharia law – the religious rules that form part of Islamic tradition – would be outlawed in the UK under the party’s proposals.

People with evidence of female genital mutilation will be bound by law to inform police, it will be suggested.

It will also call for postal voting to be abolished for most citizens amid fears it is being used for electoral fraud.

Peter Whittle, Ukip’s deputy leader, is expected to say that the "established parties are mute either from fear, denial or sheer cowardice" when it comes to the dangers of extremism.