There have been growing calls for President Rajapaksa's resignation over the past few weeks over his government's mishandling of Sri Lanka's worsening economic crisis.
The 73-year-old United National Party was appointed as the prime minister by President Gotabaya Rajapaksa after they held closed-door discussions on Wednesday.
Former Sri Lankan cricketer Ramith Rambukwella arrested in corruption case
'Granting the country's highest civilian honour to Prime Minister Modi was surprising as it indicated the government was going out of its way to have India as a close partner.'
This is the first appointment made by President Wickremesinghe on his first day in office.
Sri Lanka Prime Minister Mahinda Rajapaksa's residence in the city of Kurunegala in the north-western province was set on fire on Monday, hours after the leader tendered his resignation.
Sri Lanka's National People's Power of President Anura Kumara Dissanayake on Friday swept the parliamentary elections by winning a two-thirds majority, and also dominating the Jaffna electoral district -- the heartland of the nation's Tamil minority.
Sri Lankan Prime Minister Mahinda Rajapaksa resigned on Monday, hours after his supporters attacked anti-government protesters outside embattled President Gotabaya Rajapaksa's office, leaving at least 78 people injured and prompting authorities to impose a nationwide curfew and deploy army troops in the capital.
Sri Lanka's Acting President Ranil Wickremesinghe on Monday imposed emergency giving him sweeping powers ahead of the key election on July 20 to pick a new President as he urged the political parties to put aside differences and form an all-party government, with the Opposition dubbing his decision as an 'undemocratic draconian act'.
Parliament met for a brief special session on Saturday to announce the vacancy in the presidency following the resignation of Rajapaksa.
The Sri Lankan Parliament is all set to elect the successor to Gotabaya Rajapaksa in a three-way presidential contest on Wednesday, following a high-voltage political drama which saw the former president fleeing the country and resigning after a popular uprising against his government for mismanaging the economy.
A Sri Lankan parliamentarian of the ruling party of the Rajapaksas and his personal security officer were killed on Monday in clashes between anti- and pro-government protesters in the country.
On May 9, violence erupted in Sri Lanka after supporters of the 76-year-old former premier attacked peaceful anti-government protesters demanding his ouster over the country's worst economic crisis that led to acute shortages of staple food, fuel and power.
Outside parliament, Sri Lankans continued their protests against their newly elected president, who they charge with being close to the Rajapaksa political dynasty.
'India has given assistance that we required, otherwise we would not have been able to survive this far.'
Despite mounting pressure, Gotabaya, and Prime Minister Mahinda have refused to quit office.
Earlier it was claimed that the MP committed suicide by shooting himself after he opened fire at two members of the group which had surrounded his vehicle on Monday.
A former Liberation Tigers of Tamil Eelam child soldier-turned-politician was acquitted by a court in Sri Lanka on Wednesday in the 2005 murder case of a senior ethnic Tamil lawmaker at the height of the country's bloody civil war.
Sri Lankan President Gotabaya Rajapaksa, who is under pressure to resign, was dealt a further blow on Wednesday when three more parliamentarians withdrew their support to the government.
A delegation from former president Maithripala Sirisena's Sri Lanka Freedom Party met him in the morning to press for their demand on the formation of the interim government.
During the 13-minute special session, Dhammika Dassanayake, ecretary general of Parliament, announced the vacancy for the post of president.
Eyewitnesses said that a section of the protesters had remained for the all-night vigil.
The SLPP, led by prime minister Mahinda Rajapaksa, has won in 145 constituencies, bagging a total of 150 seats with its allies, a two-thirds majority in the 225-member Parliament, according to the results announced by the election commission.
Democratic Left Front politician Nanayakkara was among the 42 members who declared independence in Parliament from the ruling Sri Lanka Podujana Peramuna (SLPP) coalition.
The SJB has begun to collect signatures from MPs for the no-confidence motion, according to media reports.
Rajapaksa fled the country and resigned last month in the face of a popular uprising against his government for mismanaging the island nation's economy.
The 225-member Parliament will elect the new president by a secret vote on July 20, Speaker Mahinda Yapa Abeywardena said on Friday.
President Gotabaya Rajapaksa on Monday fired Basil Rajapaksa from his post and invited the Opposition parties to join a unity Cabinet to tackle the raging public anger against the hardships caused by the economic crisis.
Sri Lanka's new Finance Minister Ali Sabry on Tuesday resigned, a day after President Gotabaya Rajapaksa appointed him after sacking his brother Basil Rajapaksa amidst the island nation's worst economic crisis.
Unofficial results indicate that the SLPP would comfortably win at least 17 out of the 22 districts on offer.
Sri Lanka's main Opposition parties on Sunday agreed to form an all-party interim government after the anticipated resignation of President Gotabaya Rajapaksa on Wednesday, following unprecedented political turmoil that forced him and Prime Minister Ranil Wickremesinghe to offer their resignations over the mishandling of the nation's crippling economic crisis.
The ex-president returned to Sri Lanka on a Singapore Airlines flight.
Basil had negotiated the Indian economic relief package to help Sri Lanka tackle the current foreign exchange crisis.
The dissidents, led by former president Sirisena's Sri Lanka Freedom Party, would leave the ruling Sri Lanka Podujana Peramuna coalition with its 14 Members of Parliament, party sources said after their meeting with the President on Monday.
The order was also imposed on parliamentarians Johnston Fernando, Pavithra Wanniarachchi, Sanjeewa Edirimanne, Kanchana Jayaratne, Rohitha Abeygunawardena, C B Ratnayake, Sampath Athukorala, Renuka Perera, Sanath Nishantha, Senior DIG Deshabandu Thennakoon among others.
Sajith Premadasa, the 55-year-old leader of Sri Lanka's principal opposition party Samagi Jana Balawegaya, said on Tuesday that he was withdrawing from the race of President to provide support to Alahapperuma.
Rajapaksa was appointed as the premier on October 26 by President Maithripala Sirisena after sacking Ranil Wickremesinghe, plunging the nation into a constitutional crisis.
In a televised address to the nation, Mahinda, who is under growing pressure to quit due to the worst economic crisis facing the island nation, said that he understands the people's sufferings.
Ranil Wickremesinghe was on Wednesday elected as Sri Lanka's new President by Parliament, in a rare move that could provide continuity for ongoing discussions with the International Monetary Fund for a bailout for the cash-strapped nation but a development likely to anger anti-government protesters who have been demanding his resignation from office for weeks.
The violence occurred following reports on Monday that Mahinda Rajapksa may offer to stand down as Prime Minister.