The pro-jallikattu movement was a historic protest held by youths across Tamil Nadu demanding a lift of the ban on the bull-taming sport in January 2017.

Hasini, a 7-year-old girl from Kundrathur was raped and murdered allegedly by her neighbor Dashwant on February 5. The alleged rapist was released on bail after which he reportedly murdered his own mother.

The Deputy Chief Minister O Panneerselvam who resigned his position as the Chief Minister of Tamil Nadu met reporters after meditating in J Jayalalithaa’s memorial On February 7. He alleged that he was forced to resign by VK Sasikala. He received support from various party members including senior member Maithreyan.

VK Sasikala, who was the General Secretary of AIADMK at that time, was sentenced to imprisoned for four years in the disproportionate assets case on February 14. This resulted in major changes in the politics of Tamil Nadu.

Following O Panneerselvam’s ouster from the party, various members supported him which eventually ended up in a trust vote in the assembly. Chief Minister Edappadi Palaniswami received the majority of votes, thus retaining his position as the CM. DMK working President Stalin's shirt was allegedly ton when DMK demanded to not to disclose the identity of voters.

Superstar Rajinikanth gave the first hint about his political entry. Durin his first fan meet, he said, “I will call you when there’s a war”. On December 26, while meeting his fans again, he said that he would give an official statement about his entry to politics. And on the last day of the year, Rajinikanth made his big announcement and said, "I will enter politics for sure". He also said that he will begin his own political party.

On July 1, the most controversial Goods and Service Tax was implemented. It is still being criticized by many economists in the country

The faction of CM Edappadi Palaniswami and the faction of Deputy CM O Panneerselvam joined hands formally after the heads met and accepted to work together on August 21. Following the merger, TTV Dhinakaran, VK Sasikala, and many party members were ousted from AIADMK.

Medical aspirant Anitha, who stood against the medical qualification exam NEET, committed suicide on September 1 as she failed to clear NEET exam. Many protests broke after her suicide.

The deadly game blue whale challenge started going viral in September 2017. Many youngsters including students from TN committed suicide as they played the game. The game maker, a Russian teen was arrested after several suicide cases were reported around the globe.

Several people of Tamil Nadu lost their lives to Dengue and fever triggered by Dengue in the month of October.

Actor Vijay starrer Mersal was caught in a controversy which was stirred up by TN BJP members Tamilisai Soundararajan and H Raja. The movie had dialogues about GST and Demonetisation.

Esakkimuthu, a resident of Tirunelveli set himself and his family members (wife and two kids) on fire as he was unable to pay back the loan that he got from a money lender. The incident happened in front of the Tirunelveli collectorate on October 23.

Bala, a well-known cartoonist was arrested on November 5, following his controversial cartoon about the self-immolation case. His cartoon showed the CM, Deputy CM and the collector of Tirunelveli in a bad light. This arrest stirred up controversy as press freedom was questioned.

During his visit to Chennai to take part in an event, the Prime Minister Narendra Modi paid a visit to the former Chief Minister M Karunanidhi on November 6 at his residence to call on his health. Speculations about an alliance for DMK with BJP surfaced after the meeting.

Actor Kamal Haasan, who has been voicing his opinion on the current political scenario on Twitter, formally made a statement “I am getting a political party ready” on November 7. He met several party leaders including Arvind Kejriwal and Mamata Banerjee.

An IT raid was conducted in residences and offices owned by VK Sasikala and her kin starting from November 9. As a continuation of the raid, ‘Veda nilayam’, where the former CM J Jayalalithaa lived was also raided by IT officials.

The most awaited verdict of the two-leaves symbol was announced by the Election Commission on November 23. Edappadi Palanswami - O Panneerselvam faction won the symbol to use during the RK Nagar by-election.

Cyclone Ockhi, which slashed the district of Kanyakumari in Tamil Nadu and other districts in Kerala, cost lives and properties. A search operation is still on for the TN fishermen who went missing while they went to the ocean for fishing during the cyclone. The cyclone started on November 29 and lasted until December 6.

Actor Vishal gave a surprise to his fans & politicians by filing nomination to contest in the RK Nagar by-election on December 4. However, his nomination was rejected twice by the Election Commission.

In a landmark judgment, the Tiruppur Court on December 12 sentenced six people to death including the victim’s father-in-law. Udumalai Shankar was killed by his wife’s relatives as the former was a Dalit.

Police inspector Periyapandiyan was shot dead by his own colleague Munisekar accidentally. Four cops from Chennai went to Rajasthan to nab robbers in a Kolathur robbery case.

The most awaited 2G verdict was announced on December 21. MP Kanimozhi and former Telecom Minister A Raja along with others who were accused in the 2G spectrum scam were acquitted in the verdict.

A video of former Chief Minister J Jayalalithaa getting treated in Apollo hospital was released on December 20 by TTV Dhinakaran supporter Vetrivel, a day before the RK Nagar by-election.

The rebel leader TTV Dhinakaran made a historic win in the RK Nagar by-election. He was the first independent candidate to win in the constituency. After J Jayalalithaa’s demise, TTV Dhinakaran will be the first MLA for RK Nagar.