Vijay Sethupathi, Soori, Gautham Vasudev Menon, Bhavani Sre, Rajiv Menon, Ilavarasu, Balaji Sakthivel, Saravana Subbiah, Chetan and Munnar Ramesh reprise their roles from the first film, with Manju Warrier, Kishore, Anurag Kashyap, Bose Venkat, Vincent Asokan and Ken Karunas joining the ensemble cast.

Viduthalai was originally announced as a single film in April 2021, while the principal photography had commenced in the previous December, shooting predominantly in Sathyamangalam and Chengalpattu.

After Perumal "Vaathiyaar" (Vijay Sethupathi), a radical communist leader, confesses his past mistakes, including accidentally causing the deaths of a farm slave Karuppan (Ken Karunas) and wife, while expressing regret over the tragic bombing incident and his disillusionment with peaceful protests, he gains the support of the officers, including Kumaresan (Soori), but is eventually recaptured by his gang, leading to a bloody confrontation where despite his peaceful surrender, the new police leader Amudan (Tamizh) kills him, and in the aftermath, Kumaresan, driving the truck carrying Vaathiyaar’s body, crashes it off a mountain, walks into the jungle, and pens a final letter to his mother, stating that if he never returns, she should assume he died trying to help others.

[31] Risha Ganguly of Times Now gave 3.5/5 stars and wrote "Viduthalai Part 2 is a bold attempt at closing an ambitious story, with Vetrimaaran’s signature storytelling and strong performances standing out.

"[33] M Suganth of The Times of India gave 3/5 stars and wrote "Where Viduthalai: Part 2 feels underwhelming is in not being a truly compelling film.

"[34] Janani K of India Today rated 3/5 stars and wrote "Viduthalai Part 2 gives proper closure to the characters and the story, and it is a commendable effort.

"[35] Sudhir Srinivasan of Cinema Express gave 3/5 stars and wrote "Viduthalai Part 2 leans too heavily on theorising and sloganeering.

"[36] Anusha Sundar of OTTPlay gave 3/5 stars and wrote "In a Vetrimaaran film where political ideologies are not just laced but outspoken, Viduthalai 2 may come of disjointed in parts but still carries a tale to be told.

"[37] Kirubhakar Purushothaman of News18 gave 2/5 stars and wrote "In essence, Viduthalai Part 2 is Vetri Maaran constantly finding ways to tell you the uninspiring story, which he couldn’t show.