During the late 1990s and early 2000s, he worked on four other projects, Vaigai Karai Oram with Vijayakanth, Anandham with Karthik, Karma Veerar with Sarathkumar, and Sethupathi Cheemaiyile with Rajkiran, but all failed to develop beyond production.

[15][16] The film's production was briefly halted following a disagreement between the actor and director, after Seeman raised an objection to Madhavan returning to be with his family for the birth of his son.

A reviewer from Sify noted the "execution is tacky and the final outcome is a dreary and boring message film that leaves you exhausted.

[26] In 2013, Seeman approached Jiiva, Jayam Ravi, Arya and Vishal to work on the project, but none of the actors agreed to be a part of the film.

In the 2006 assembly elections, he campaigned for the DMK alliance, and notably sided with Pattali Makkal Katchi's S. Ramadoss and delivered speeches against the candidature of Vijayakanth.

[34] Seeman along with several other activists gathered on 18 May 2009, coinciding the end of the Sri Lankan Civil War at Madurai to form the Naam Tamilar Iyakkam, as a social outfit.

[36] Seeman was arrested at Chepauk under the National Security Act for making inflammatory speeches at a meeting protesting against the killing of a Tamil fisherman by the Sri Lankan Navy.

[38] Upon his release from a five-month detention at the Vellore prison in 2011, Seeman actively campaigned for the defeat of the Indian National Congress in the 2011 Legislative Assembly elections.

[48] During the parliamentary elections in 2014, Seeman stated that the NTK would campaign for the defeat of all candidates fielded by the INC, BJP and DMDK and would support the AIADMK.

[49] In September 2016, Seeman was among some 176 people arrested after "attempting to lay siege to Srivaikuntam dam, where desilting works [were] under way as per a directive from the National Green Tribunal".

[51] Seeman contested in the 2016 Tamil Nadu Legislative Assembly election from Cuddalore constituency and polled 12,497 votes and lost by a low margin, finishing fifth and forfeiting his deposits in the process.

[63][64] The pair continued to engage in a public war of words throughout the 2010s, with Vijayalakshmi later attempting suicide in July 2020, blaming Seeman and his supporters of torture.

[65][66] In 2011, Seeman publicly expressed his interest in marrying a Sri Lankan Tamil woman and chose Yarlmathy, a widow of an LTTE fighter, but later did not do so.

[67] Seeman has received several threat letters for his support of the Liberation Tigers of Tamil Eelam (LTTE) and other controversial remarks on Indian social issues.

[70] In 2013, Seeman invited Kashmiri separatist leader Yaseen Malik for one of his public meetings, which drew significant criticism from both the INC and BJP.

[78] In February 2023, during the Erode East Assembly constituency by-election campaign, when talking about the Vijaynagar kings capturing Tamil Nadu, he had mentioned "they brought members of the Arunthathiyar community to this region to do scavenging".

[82] While speaking at a demonstration to condemn the 2023–2025 Manipur violence on 30 July 2023, Seeman called Muslims and Christians as "Satan's children" by blaming them that they had consistently voted for DMK and Congress.

[83][84][85] Despite condemnation from multiple organisations and political parties representing minority communities, Seeman questioned whether Muslims and Christians would begin "voting for me if I apologize for my remarks."