A British Asian Tory activist has been left shaken after he was subjected to a four-minute foul-mouthed rant by a screeching man in Islamic dress who told him to 'go back to a white f***ing country'.

Has Ahmed, 23, was canvassing for the party in Redbridge, north east London, on Sunday ahead of next month's crunch election when he was suddenly harangued by a furious member of the public.

Stalking the grassroots campaigner along the road, the unknown aggressor spat out a slew of insults, branding his target 'sick in the head'.

Speaking to MailOnline, Mr Ahmed said he was both terrified by the unprovoked verbal onslaught and saddened that he received such racist abuse.

The tech analyst from Stratford, who moved from Islamabad, Pakistan, 10 years ago, said: 'I was walking towards the station through town when the man saw my rosette and asked if I was a Conservative.

'When I said yes, he said 'aren't you ashamed?', and I just asked 'why would you say that?'.

Has Ahmed (left), a member of East London Conservatives, was canvassing for the party ahead of next month's crunch election when he was suddenly harangued by a furious member of the public (right)

'He then got much louder and aggressive so I just walked away. There were other people about, but nobody interfered. It was really quite scary.

'One man took his headphones off to see what was happening, but when he saw my rosette he just put them back on and carried on walking.

Mr Ahmed, who is also Muslim, said that the man followed him for three to four minutes, during which time he was branded a 'coconut' - a racial slur accusing someone of betraying their ethnicity.

He added: 'I was really nervous, I was so scared until the moment I got home and locked my doors. I was shaken, I switched my phone off and just sat there.'

The aspiring MP told MailOnline that he decided to film the man in the hope he would go away.

The tech analyst from Stratford dreams of entering Parliament as a Tory MP and regularly campaigns for the party (pictured on a previous canvassing session)

This short clip, captured at the end of the rant, shows Mr Ahmed, who has a blue Conservative rosette pinned to his jacket, walking towards Goodmayes station.

Pacing behind him, with his face contorted with rage, the seething aggressor is midway through his blistering verbal attack.

Jabbing a finger towards Mr Ahmed, he screams: 'You are a f***ing fascist!

'You're stupid! You are f***ing sick in the head if you are voting for Conservative!

'You are a bloody idiot. Go somewhere else, go to a white f***ing country!'

The video, which has been viewed over 300,000 times, sparked a police appeal for information - but Scotland Yard is yet to make any headway.

Mr Ahmed later joked on Twitter: 'Politics and differences aside, this man was extremely hostile and aggressive while campaigning today. Can we put him down as a 'maybe' for the Conservatives?'

Stalking the grassroots campaigner along the road, the unknown aggressor spat out a slew of insults, branding his target 'sick in the head'

Mr Ahmed seemed to shrug off he abuse with a joke, but also slammed the man as 'extremely hostile'

His unruffled reaction has been applauded on social media including by senior Conservative figures.

James Cleverly, Chairman of the Conservative Party, said: 'I was appalled to hear of the abuse that Has Ahmed received whilst out campaigning. No one should be subject to intimidation or abuse simply for standing up for what they believe.

'Behaviour of this kind has no place in our society or in our politics and we have a shared responsibility to stamp it out.'

Tory minister Johnny Mercer, a former army officer, said: 'I'll come campaigning with you next time. Top man. Good work.'

Mr Ahmed said he was grateful for the positive response, and revealed he will be going to Conservative HQ tonight to meet the party chairman, James Cleverly.

The British citizen of five years said the abuse he received will not deter him from following his dream of entering Parliament and becoming the first foreign-born Foreign Secretary.

The general election campaign has been condemned by many across the political divide as one of the most divisive of modern times.

Before Parliament shut, the level of debate in the Commons chamber was slammed as 'toxic', fearing the stoked tensions would spill out into the wider public.

At the ITV leaders debate last week, Boris Johnson and Jeremy Corbyn both shook hands on an 'honesty pledge' and agreed to double their efforts to take the 'nastiness' out of politics'.