Here's your 10-point guide to this big story:
Keshav Prasad Maurya, who lost the election, has been retained as deputy but Dinesh Sharma, who did not contest the assembly elections this time, has been replaced with Brajesh Pathak. Mr Pathak, Law Minister in Yogi Adityanath's first term, is a Brahmin strongman who won his second election from a seat in Lucknow.
Hours before Yogi Adityanath's oath, many newly-elected MLAs and MLCs went to the Chief Minister's residence. The meeting triggered speculation about his new ministers.
Jitin Prasada, Satish Sharma, Brajesh Pathak, AK Sharma, Asim Arun, Dinesh Khatik, Arun Valmiki, Ashish Patel, Sanjay Nishad, Dayashankar Singh, Salil Vishnoi, Yogendra Upadhyaya, Kapil Dev Agrawal, Ravindra Jaiswal, and Baby Rani Maurya are among the Minister hopefuls who have already arrived. Sunil Bansal, Baldev Singh Aulakh, Sandeep Singh, BL Verma, Nitin Agarwal, Swatantra Dev Singh, Sanjeev Gaur, and Bhupendra Singh Chaudhary were other possible picks who were also seen at the Chief Minister's residence.
The BJP retained power in Uttar Pradesh by winning 255 out of 403 constituencies, securing a 41.29 per cent vote share. Yogi Adityanath, who led his party to a thumping victory, will be the first Chief Minister in the last 37 years to return to power after completing a full term in the state.
He was on Thursday elected the head of the legislature party ahead of his swearing-in ceremony today. Shortly after being elected, he met Governor Anandiben Patel and staked a claim to form the government in the state.
The oath ceremony of the Chief Minister and his cabinet will be held on Friday, which will be attended by PM Modi. Preparations are being made for thousands of guests, including senior party leaders, Union Ministers and Chief Ministers of BJP-ruled states.
Several Bollywood stars, including Akshay Kumar, Kangana Ranaut and Boney Kapoor, have also received invitations for the mega swearing-in ceremony. The team of the recently released controversial Hindi movie "The Kashmir Files" has also been invited. Actor Anupam Kher and director Vivek Agnihotri are expected to attend.
Home Minister Amit Shah and BJP Chief JP Nadda will also attend the mega event. All present and past BJP state Chief Ministers have been invited.
Around 85 thousand people will be attending the grand ceremony, news agency ANI reported quoting sources. A grand stage has been set up and posters have been put with slogans that read 'Naye Bharat ka Naya UP'(New UP of New India).
The ceremony will be held at Bharat Ratna Shri Atal Bihari Vajpayee Ekana Cricket Stadium in Lucknow at 4 pm.
BJP Sweeps Municipal Polls In Uttar Pradesh, Wins All 17 Mayoral Seats Video: BJP MLAs Do "Teen Patti, Tobacco In Assembly", Says UP Opposition As 52 Ministers Take Oath In UP, BJP Changes Muslim Face Of The Party Russia's Firing Of ICBM On Ukraine Is Weapon's 1st Combat Use In History Russia Launches ICBM At Ukraine In Stern Message To Kyiv, Western Allies Meet 69-Year-Old St Stephen's Alumnus Who Posed As Ex IPS To Con Officials Maharashtra's 65.1% Voter Turnout Is 2nd Largest Since 1990s Man Who Issued Death Threat To Shah Rukh Khan Tracked His Movements Online Delhi University To Extend Re-evaluation Option To Law Students Track Latest News Live on NDTV.com and get news updates from India and around the world.