Box office Manjummel Boys grossed in
Kerala and in Rest of India (with a majority in
Tamil Nadu₹64.10 crore) and overseas territories (₹73.3 crore) for a worldwide total of . It remains as the
highest grossing Malayalam film in Rest of India. On the opening day of its release, the film earned a gross collection of as per early estimates and as per revised reports by trade experts. On its second day the film garnered to a worldwide gross of . It grossed over worldwide by its third day. The film earned worldwide within the first four-day weekend of its release. The film grossed from overseas giving it a worldwide gross of in 5 days. In eight days, the film grossed at the worldwide box office, earning domestically and from the overseas. By 5 March 2024, the film crossed crore. By 14 March 2024, the film crossed ₹175 crore. As of 19 March 2024,
Manjummel Boys has grossed a worldwide total of ₹200 crore (US$25 million). Within eleven days, the film earned , thereby becoming the highest-grossing Malayalam film in the state. Film analysts and exhibitors attributed the success of the film which was primarily attributed to 60% of the film being set in Tamil Nadu which connected with the local audiences, along with the nostalgia, themes and emotional connect with family audience and youngsters, and popular references to Tamil cinema, primilarily
Gunaa, which was shot in the Gunaa caves. Exhibitors further described that the lack of notable Tamil films and the releases during February and March 2024 not performing well as expected were the contributing factors for the film's overperformance in the state.
Critical response Manjummel Boys received critical acclaim from critics. S. Devasankar of
Pinkvilla gave 4/5 stars and wrote "
Manjummel Boys is one of the finest additions to Malayalam survival thriller films. The film demands a theater watch with the best sound quality for the best experience, and is sure to leave the audience shook". Gopika I. S. of
The Times of India gave 4/5 stars and wrote "
Manjummel Boys isn't your average friendship flick packed like a survival film. If you are looking for a crisp survival film, this is it. It's an absolute marvel of visuals, absolutely good writing, characterisation, editing, acting and all the thrills". Arjun Menon of
Rediff gave 4/5 stars and wrote "Manjummel Boys gets so many things right that the small nitpicks don't amount to much in the larger picture". Sanjith Sridharan of
OTTplay gave / 5 stars and wrote "Chidambaram hasn't tried to overdramatise Manjummel Boys for the sake of entertainment and has kept it mostly true to the events that had transpired in Kodaikanal in 2006". Anandu Suresh of
The Indian Express gave 3/5 stars and wrote "Despite its shortcomings, Chidambaram's film can indeed be seen as a powerful tribute to the real
Manjummel Boys and their determined efforts to save their dear one". Janani K. of
India Today gave 3/5 stars and wrote "Director Chidambaram's
Manjummel Boys is a heartwarming thriller which is earnest in its attempt". S. R. Praveen of
The Hindu wrote "Though the survival thriller part brings back memories of Bharathan's
Malootty, this one takes a different path by tying the events closely to their friendship of the characters". Princy Alexander of
Onmanorama wrote "Overall, the movie is a neatly crafted tale of friendship that triumphs over the survival drama". == Accolades ==