Unions delighted that there has been no watering down of plans, which will apply to England, Scotland and Wales

Trade unions declared victory on Tuesday as Labour bolstered a string of measures in its workers’ rights bill, amid criticism of the government from business groups saying there had been no “meaningful change” despite engagement.

Union sources said they were delighted that there had been no watering down of any key measures in the employment rights bill, which will face its final vote in the Commons next week, after wrangling between ministers, unions and businesses.