Mersal is a really enjoyable film with plenty of entertainment value. This feels like Vijay’s strongest work to date, and he deserves recognition for taking on the triple role. The movie manages to avoid exaggerating Vijay's typical "mass" appeal, though it does deliver some scenes that are genuinely thrilling. The cinematography is excellent throughout, and songs such as “Mersal Arasan” and “Aallaporan Tamizhan” are fun to watch, largely because of Vijay’s dancing. While the action sequences don’t quite live up to what we're used to from him, they work well within the context of the story. The plot itself isn’t particularly original or exceptional, but it succeeds primarily due to the social commentary woven throughout. There are numerous references to current issues facing India, and it’s commendable that the film takes time to address them. The central theme revolves around hospitals taking advantage of patients for financial gain, and I believe the movie effectively portrays the emotional suffering of those affected. The flashbacks featuring Vijay's Vetrimaaran character really reinforce this feeling. The performances from the supporting actors were generally unremarkable. Vadivelu returns to comedy after a long absence, but his jokes didn’t consistently land. SJ Surya plays the standard villain and does an adequate job, although expectations were higher given his acclaimed performance in Spyder. The rest of the cast's contributions are also fairly average. My biggest issue with the film lies with Vijay’s romantic interests. Samantha and Kajal’s characters felt unnecessary to the story and seemed solely intended for two musical numbers. The movie dedicates a significant amount of time to these romance scenes, which would have been better spent developing the social message it aims to convey; that would have made a bigger impact. Nithya Menen was the only actress who truly delivered a strong performance. The magical aspects of Vetri’s character were interesting, but occasionally felt far-fetched and seemed included simply to move the plot along. More believable scenes could have been developed instead. Ultimately, it's a good movie that I think most viewers will appreciate. I recommend seeing it for the social message and Vijay’s acting; you likely won’t regret it.

Source on TMDB