May is now expected focus on pushing her controversial withdrawal agreement through for a last-ditch Commons vote next Tuesday
MPs voted against the text negotiated with European leaders by 344 votes to 286.
The British PM's EU withdrawal deal has been rejected by MPs by an overwhelming 149 votes, with just 17 days to go.
If rebel MPs from his own Tory party and Opposition benches succeed in uniting and seeing the motion through, it would force Johnson's hand on seeking an extension to the Brexit deadline from the EU at least until January 31, 2020, in the event that no withdrawal agreement is agreed between both sides by the middle of October.
A referendum will be held on Thursday, June 23, to decide whether Britain should exit (Britain's exit, hence the term Brexit) or remain in the European Union.
Britain is due to leave the European Union by October 31, with Johnson racing against time to strike a deal to meet that deadline.
The UK PM was bound by law to issue a letter seeking a delay to Brexit after MPs voted in a historic Super Saturday Parliament session to delay voting on his motion on a new Brexit deal.
The announcement comes two years after the referendum in which the British people voted to leave the EU.
In a series of votes on Tuesday, lawmakers rejected a no-deal Brexit by 318 votes to 310, undermining the government's argument that Britain would be willing to crash out of the EU without an agreement.
What will be the impact on the Euro itself? Will it devalue and to what extent?
She, however, did not name a departure date at the at the ruling party's influential 1922 Committee meeting.
The Royal Assent authorises Prime Minister Theresa May to invoke Article 50 to begin the country's exit negotiations from the EU.
In a statement to formally update parliament on her European Council meeting last week where the EU agreed to a short delay to the March 29 Brexit deadline, the British PM said she remained committed to "guarantee Brexit" even if it isn't as initially planned for this Friday and would continue to lobby MPs to get the support required for another vote on the withdrawal agreement agreed with the European Union.
'At this point, it does not appear to be a Lehman Brothers kind of crisis, which had a domino effect on the financial system.'
May issued a statement to indicate the government's next steps a day after the House of Commons once again failed to agree on any specific alternative to her controversial EU divorce bill.
The 62-year-old premier remains defiant despite the prospect of a no-confidence vote after Jacob Rees-Mogg, a leading Tory Brexiteer, piled on the pressure by submitting a letter of no-confidence to the chair of the Conservative's influential 1922 Committee on Thursday.
Rajan said there will be some volatility, but once the initial bout or wave abates, people will look for good fundamentals
The resignations are being seen as a sign of bigger troubles ahead for May, who defended the deal before belligerent MPs in the House of Commons.
British MPs voted in favour of the European Union (Notification of Withdrawal) Bill after two days of debate by a majority of 384-498 votes in favour to 114 against.
Both Sensex and the rupee posted slight gains on Monday but Brexit concerns lingered.
Last month, in a historic development, the UK voted to leave the European Union.
India will need to 're-examine' and 're-negotiate' the trade access with the European Union and the United Kingdom which she noted may or may not be 'good' for India.
The Withdrawal Agreement was rejected by 432 votes to 202 - a majority of 230, the biggest defeat ever suffered by a British premier in modern history.
Farage, 52, said he felt he had done all he could to achieve a vote for the United Kingdom to leave the EU in a referendum on June 23 and now he wanted "his life back".
Stocks of companies having operations and exports to Europe were the top losers.
Johnson becomes the 14th Prime Minister to be appointed by Queen Elizabeth II, the 55th to hold the post of British PM and the third in fairly quick succession since Britain voted to leave the EU in June 2016 - following on from David Cameron and Theresa May.
Spain's Nolito clueless about British referendum moniker
'It is never a good idea to let the broad population determine policy that is the domain of experts and specialists,' notes Aakar Patel.
The decision will embolden populists across the continent.
Golden tips for investors post Brexit from Feroze Aziz, Deputy CEO, Anand Rathi Financial Services.
It is clear that the world desperately needs a globalisation model that will work for all and not just some, says Sunita Narain.
It also receives large investments from the Europe.
The European Union (Notification of Withdrawal) Bill had its final debate and vote last night to allow the British Prime Minister to invoke Article 50 of the Lisbon Treaty to begin a two-year period of negotiations for the UK's new deal as a non-member of the European Union by 2019.
On her first foreign trip since taking office, May told Merkel that her government would not ask to leave the EU before the end of 2016.
The Lords voted on Wednesday 358 to 256 for an amendment requiring ministers to protect the rights of EU nationals based in the UK following Brexit. In the House of Lords, May's Conservative Party does not command a majority.
'Gyanendra back on the throne would be bad news for the Nepali people. He may not have learnt from his experience, but we have.'
The overall level of racist and hate related incidents was up 20 per cent in July 2015.
A leave vote means the future of Britain's financial services industry is now hanging in the balance.
The IMF has encouraged both the UK and the EU to work collaboratively towards a smooth transition.
RBI promises to take all necessary steps, including liquidity support