In a big blow to embattled British Prime Minister Johnson, two of his senior Cabinet colleagues, including Chancellor Rishi Sunak, resigned on Tuesday, as they expressed their loss of confidence in his leadership amidst a spate of scandals.
Following is the chronology of the main events illustrating Sunak's second shot at UK prime minister's post.
Conservative Party leader Liz Truss was on Tuesday formally appointed as Britain's new Prime Minister by Queen Elizabeth II, becoming the third female premier of the country.
The Department of Health and Social Care said a total of 81,959,398 doses of COVID vaccines have been administered in the UK, with 46,227,101 people receiving a first dose (87.8 per cent) and 35,732,297 people receiving both doses (67.8 per cent).
The British government has claimed Begum could seek a Bangladeshi passport given her heritage but her family has argued that she is British and has never held Bangladeshi citizenship.
The move follows the World Health Organisation's Emergency Use Listing for Covaxin, which is the second most used formulation in India.
Sunak, who formally launched his campaign earlier, remains the frontrunner in the race with reportedly the highest number of MPs behind him.
Sajid Javid, the son of a Pakistani bus driver whose family migrated to Britain in the 1960s, becomes the first South Asian origin MP to hold a key portfolio in the UK Cabinet.
UK awaits final court orders to extradite Sanjeev Chawla to India
With Rishi Sunak now firmly placed as the candidate to beat, the battle lines are drawn for second place in the race to replace Boris Johnson as Conservative Party leader and British prime minister, with the remaining five contenders set for their first public clash on Friday.
British Indian former Cabinet minister Rishi Sunak maintained his lead as the race to replace Boris Johnson as Conservative Party leader and next UK prime minister widened on Sunday with a total of nine candidates in the fray, with Trade Minister Penny Mordaunt emerging as an early second favourite.
After the big blow of losing his chancellor Rishi Sunak and health secretary Sajid Javid in quick succession, a flurry of junior ministerial and government aide resignations hit embattled British Prime Minister Boris Johnson on Wednesday as he fought the latest challenge to his leadership.
Britain's Prime Minister-elect Liz Truss will spend Monday putting finishing touches to her new cabinet after being elected Conservative Party leader and is expected to unleash a complete shake up of outgoing leader Boris Johnson's top team.
In a cabinet that was already being touted as the most diverse in British history, Priti Patel became the first Indian-origin home secretary with Pakistani-origin Sajid Javid moving from the UK Home Office to become the new chancellor.
Clark's predecessor Sajid Javid had pledged to help Tata Steel UK with a proposed package of measures and new British PM Theresa May is reportedly supportive of the plan
PHE estimates that the vaccination programme in England has prevented 22 million infections, around 52,600 hospitalisations and between 35,200 and 60,000 deaths.
The 42-year-old British Indian MP for Richmond in Yorkshire maintains his lead in the race to replace Boris Johnson as nominations formally opened for the contest.
There are around 7.5 million people aged 30 to 39, and 3.5 million of those are eligible for boosters from Monday, NHS England said.
British Prime Minister Boris Johnson on Thursday finally agreed to step down as Conservative Party leader, triggering a leadership election for a new Tory leader who will go on to become the new premier, according to reports from Downing Street.
Long queues were seen outside walk-in vaccination centres across the UK on Monday as people queued for their booster vaccine doses, even as the government's work from home guidance came in force as part of measures to tackle the "tidal wave" of the Omicron variant of COVID-19.
The UK on Saturday detected two cases of the new COVID-19 variant, Omicron, according to health secretary Sajid Javid as he added four more African countries to Britain's travel red list.
Boris Johnson is in a 'buoyant mood' and 'will fight on' to stay as the British Prime Minister, one of his top aides has said, despite some of the embattled premier's most loyal cabinet ministers, including Home Secretary Priti Patel, joining the mutiny and demanding his resignation.
Putting an end to the vaccine certification row, the UK on Thursday announced that Indians, fully vaccinated with Covishield vaccine, will no longer require to undergo quarantine on their arrival in Britain from October 11.
The UK Health Security Agency (UKHSA) analysis showed that around three months after the third jab, protection against hospitalisation among those aged 65 and over remains at about 90 per cent.
Even before Boris Johnson stepped out of 10 Downing Street on Thursday to deliver his resignation speech as Conservative Party leader and triggering a leadership race for a new British prime minister, at least one Indian-origin candidate is already lined up to compete for the "best job in the world".
Sanjeev Chawla, accompanied by a Delhi police crime branch team from London, reached Delhi on Thursday morning
Chawla has been arrested over his role in the fixing of "cricket matches played between India and South Africa during the tour of the South African Cricket Team to India under the captainship of Cronje in February-March 2000".
The former Cabinet minister received 114 votes in the first round of a secret ballot of Tory MPs held in the House of Commons, followed by United Kingdom foreign secretary Jeremy Hunt in second place with 43 and environment secretary Michael Gove third with 37 votes.
Rishi Sunak on Monday is all set to make history on Diwali as Britain's first Indian-origin prime minister after being elected unopposed as the new leader of the governing Conservative Party, following Penny Mordaunt's withdrawal from the race.
With the former prime minister stepping aside on Sunday night saying it was "simply not the right time" for his comeback, the prospect of a Diwali victory for Sunak cannot be ruled out.
Armed with court order, a consortium of lenders led by SBI can now sell certain real estate properties and securities belonging to fugitive Vijay Mallya to recover loans turned bad with failure of Kingfisher Airlines. A consortium of 11 banks that gave Mallya loans, led by State Bank of India (SBI), had approached a special Prevention of Money Laundering Act (PMLA) court seeking restoration of his properties seized by the Enforcement Directorate. The special PMLA court in Mumbai on Tuesday allowed the restoration of properties worth Rs 5,646.54 crore to banks.
Prime Minister Boris Johnson said the UK will hit Russia with a "first barrage' of economic sanctions, warning that President Vladimir Putin is fixed on a "full-scale invasion of Ukraine".
Sunak joins fellow Indian-origin candidate Suella Braverman, the UK Attorney General who is among the early Tory MPs to announce her plan to contest.
Vijay Mallya is accused of money laundering and violating the FEMA.
British Prime Minister Boris Johnson on Thursday said he was sad to announce his resignation as Conservative Party leader, triggering a leadership election for a new Tory leader who will go on to become the new PM.
'If we were to change the name of our country officially and become a Hindu Rashtra, will the treatment of Muslims change?' asks Aakar Patel.
The protection gained after being fully vaccinated with both doses of the Pfizer/BioNTech and Oxford/AstraZeneca vaccines against Covid-19 wanes over time, a new UK study reported on Wednesday.
The MP for Richmond in Yorkshire, married to Murthy's daughter Akshata, first entered the UK Parliament in 2015 and has fast risen up the Conservative Party ranks as a staunch Brexiteer who had back Johnson's strategy to leave the European Union.
The British government has turned down India's request for the extradition of Tiger Hanif, an alleged aide of underworld don Dawood Ibrahim wanted in India in connection with two bomb blasts in Surat in 1993, the UK home office has confirmed.