Palaniswami, a known Sasikala loyalist and a five-time MLA, is the party's strongman from Salem district.
Here is the glimpse of the political turn of events in the state
Social media exploded in support of O Paneerselvam as soon as he ended his explosive press conference on Marina Beach where he hit out against AIADMK legislature party leader V K Sasikala alleging that he was forced to resign.
Unless Governor Ravi or the Union of India moves in appeal, seeking a hearing by a constitutional Bench, this is where it all will have to end, observes N Sathiya Moorthy.
AIADMK General Secretary V K Sasikala said her thoughts will continue to remain with the party even from inside the jail.
Ace Indian off-spinner Ravichandran Ashwin is now in a wave of a storm for what appeared to be criticising the government of Tamil Nadu.
Since the demise of former All India Anna Dravida Munnetra Kazhagam supremo and chief minister J Jayalalithaa in December last year, Tamil Nadu's political scenario has witnessed unprecedented drama. Following is the chronology of major events in the southern state's ruling party.
Tamil Nadu Chief Minister M K Stalin has announced that the state's Assembly resolution seeking NEET exemption, which was sent for Presidential assent, has been declined by the Centre. Stalin termed the rejection as a "dark chapter in federalism" and accused the Centre of disregarding the will of the Tamil Nadu people. He also announced an all-political party meeting on April 9 to discuss the issue further.
The meeting of the newly-elected MLAs to elect the legislature party leader, the second within three days, reportedly saw exchanges on who should lead the party in the House with one section pitching for Palaniswami and the other for coordinator O Panneerselvam.
Madusudanan had been removed from all posts besides the primary membership for going against the party principles and bringing disrepute to it, she said in a statement in Chennai.
In more than one way, it's a setback for the DMK and Chief Minister Stalin in political terms. The electoral fall-out, if any, will have to wait until the next summer, only when assembly elections are due in the state, explains N Sathiya Moorthy.
Pandian alleged that Jaya died under unnatural circumstances and demanded a probe on her hospitalisation.
Before meeting the governor, she visited the memorial of Jayalalithaa at the Marina Beach in Chennai.
Parliament's approval of the Waqf (Amendment) Bill, a contentious piece of legislation aimed at reforming Waqf bodies, has sparked strong reactions from the opposition, who allege that the bill was "bulldozed" through Parliament. The bill, considered the government's most consequential legislation in its third term, was passed with comfortable majorities in both the Lok Sabha and Rajya Sabha despite opposition claims of a lack of consultation and an intrusion into religious affairs. Other notable bills approved during the session included the Finance Bill, Appropriation Bill, Immigration and Foreigners Bill, and Tribhuvan Sahkari University Bill. The session, which saw high productivity, also witnessed debates on issues such as economic distress, delimitation, and the three-language policy. While the government touted its achievements, the opposition criticized the government's approach and vowed to challenge the Waqf bill in court.
The Tamil Nadu Prohibition (Amendment) Act, 2024, which shall come into force on such date as notified by the government, aims to completely eradicate the menace of illicit liquor from the state.
Expelled All India Anna Dravida Munnetra Kazhagam leader V K Sasikala was set free on Wednesday by authorities after she completed four years imprisonment in a jail here in a case of disproportionate assets, setting off celebrations by her supporters in Tamil Nadu and Karnataka.
Lok Sabha Deputy Speaker M Thambidurai appealed to the newly appointed party general secretary V K Sasikala to become Tamil Nadu chief minister, saying the leadership in both the party and governance should be with the same person.
Ravi He made fervent appeal to Chief Minister M K Stalin and Speaker M Appavu for singing the National Anthem but they "cussedly refused," the Governor's office alleged in a post on social media post 'X.'
What will a split in the AIADMK mean for Tamil Nadu?
Palaniswami, Tamil Nadu's new CM was among the senior ministers who had proximity to Jayalalithaa.
All India Anna Dravida Munnetra Kazhagam supremo J Jayalalithaa was on Friday unanimously elected its legislature party leader, paving the way for her return as a chief minister of Tamil Nadu for the fourth time.
The all-important Supreme Court verdict, which will decide the future of AIADMK supremo VK Sasikala, locked in a battle for chief ministership with O Pannerselvam, is set to be pronounced on Tuesday.
OPS is just now friendless in the party's second-line, but the situation could change as and when Governor Rao arrives in the state capital, and sets the constitutional ball rolling, says N Sathiya Moorthy.
Tamil Nadu Governor K Rosaiah on Friday accepted the resignation of Chief Minister O Panneerselvam and invited All India Anna Dravida Munnetra Kazhagam chief Jayalalithaa to form the new government.
Palaniswami is the third AIADMK leader to be sworn-in as the chief minister in the last nine months.
A grim-faced Panneerselvam, who was also seen sporting a beard, was sworn in around 1.15 am by Governor Ch Vidyasagar Rao at the Raj Bhavan amidst a scene of gloom.
With no solution in sight for government formation in Tamil Nadu, the ruling All India Anna Dravida Munnetra Kazhagam has asserted that a majority of its MLAs are behind General Secretary V K Sasikala
It remains to be seen whether the Governor goes by the AG's advice for a floor test by the two competing claimants for chief ministership or invites Palanisami to form the government.
Tamil Nadu Governor K Rosaiah on Saturday invited Chief Minister J Jayalalithaa to form the government after she apprised him of her election as leader of All India Anna Dravida Munetra Kazhagam Legislature Party.
"Let us all together stop the party and government from going into the hands of a single family again. Let us form a people's government again in sync with the aspirations of people and till then this struggle will continue," he said.
Madurai (South) MLA SS Saravanan alleged that party MLAs "were being detained" at the Koovathur resort and claimed he had given a slip by wearing a "t-shirt and Bermuda (shorts)".
Two days after staking claim with him to form the government amidst political turmoil in Tamil Nadu, AIADMK General Secretary V K Sasikala on Saturday sought an appointment with Governor Ch Vidyasagar Rao to parade MLAs supporting her before him.
'Sasikala, already determined to keep both the party and CM's post for herself, might not be able to do it, if she were to wait any longer,' says N Sathiya Moorthy.
Former Chief Minister Panneerselvam could muster only 11 votes, ending the prolonged stalemate triggered by his rebellion.
Sasikala appeared in front of supporters in a dark green sari, a colour greatly favoured by Jayalalithaa.
Dinakaran has been re-inducted and elevated to the position of deputy general secretary.
One more ruling Congress legislator A John Kumar, a close confidant of Puducherry Chief Minister V Narayanasamy, resigned his MLA post on Tuesday, in yet another jolt to the ruling Congress dispensation ahead of the assembly polls due in few months.
Jayalalithaa loyalist and Tamil Nadu Finance Minister O Panneerselvam was chosen to be the next chief minister after the All India Anna Dravida Munnetra Kazhagam supremo was convicted and sent to jail for four years in a corruption case.
AIADMK chief Jayalalithaa is all set to return as Tamil Nadu chief minister for the fifth time following her acquittal in the disproportionate assets case.
A section of AIADMK MLAs owing allegiance to party General Secretary V K Sasikala on Friday dismissed media reports and allegations from the Panneerselvam camp that they were being "detained" at a resort near Chennai, and asserted that they were "free".