Sunak is a former U.K. Treasury chief, and his top priority has been the country's economic malaise.
This new leadership race is going to be a lot shorter than the last. Officials have set a week’s target to complete it
While the Conservative Party scrambles for a third PM since 2019, the Labour Party demands general elections. Constitutionally, no general election is required in Britain for two more years.
Johnson, who remained a lawmaker after stepping down as prime minister, has not said whether he will run, but his allies in Parliament are working to gather support.
A growing number of Conservative members of Parliament had called Thursday for British Prime Minister Liz Truss to step down and end the chaos.
While further U-turns on the tax-cutting plans are expected following crunch meetings at 10 Downing Street, the Tory backbenchers are said to be weighing up the prospect of changing the party leader.
"No one is more experienced and knowledgeable than Greg Hands on trade. A welcome addition back to the Liz Truss government," tweeted former Transport Secretary Grant Shapps.
After abandoning a tax cut for the wealthy that sparked a storm of opposition, Truss insisted Tuesday that she is leading "a listening government" that learns from its mistakes.
"I want to embed the opportunities of Brexit and tidy up the outstanding issues and cut taxes," said Braverman, a prominent member of the pro-Brexit wing of the Conservatives.
Back home in India, she is viewed as a British politician known for championing stronger India-UK trade and strategic ties.
Whoever emerges victorious will inherit an economy heading into a potentially lengthy recession and will need to jump straight into tackling the cost-of-living crisis walloping the U.K.
A contender in the early rounds of the Tory leadership contest, 42-year-old Goan-origin Braverman currently holds the post of Attorney General.
Even though media reports have concluded that Foreign Secretary Liz Truss will be the winning candidate when the result is declared on Monday, Sunak struck a note of optimism on Twitter.
Sunak, 42, and Truss, 47, have gone head-to-head in a dozen hustings up and down the UK over the past month to win over the votes of an estimated 160,000 Tory electorate.
Sunak answered a question about the career he would choose as a young graduate by reflecting on the 'culture' of enterprise he saw while living on the West Coast of the US between 2004 and 2006.
His pledge came as energy consultancy Cornwall Insight issued a forecast to say that household heating bills are expected to rise even further this winter than previously predicted.
The Ready4Rishi campaign team released details of what has been dubbed as 'ambitious plans' to tackle Islamist extremism and protect the UK from terrorism.
"I'm fighting for the values I believe in. I'm fighting for the things that I think are right for our country. And I'm not going to stop," he reassured one supporter.
With Britain facing its tightest cost-of-living squeeze for decades amid soaring energy prices, it's here where the two candidates differ most.
He also plans to launch a National Grooming Gangs Whistleblower Network to gather intelligence on gangs and create a dedicated database to help the police monitor suspects.