The film was released on September 19, 2015, in Kerala and outside Kerala on October 2, 2015. The television satellite rights of
Ennu Ninte Moideen was purchased for an amount of 7 crore by
Asianet, which was the highest satellite purchasing amount for any Malayalam film.
Film festival screening The film was among the seven films selected to be screened in the Malayalam Cinema Today section of the 20th edition of the
International Film Festival of Kerala (IFFK). However, director R. S. Vimal decided to withdraw the film from the festival as it was not included in the Competition Section.
Critical response The Hindu wrote "the film presents a classic case of how a compelling real life incident can be adapted for the screen without compromising on the aesthetics of the medium."
Baradwaj Rangan wrote, " Even with flatly written characters and plodding narration, the film strikes a chord." Veeyen of
Nowrunning.com rated 3/5 and opined that "a slow-burner that invites its viewers to soak themselves in a compelling romantic tale that is prudently drawn from real life. A pithy, well-acted and remarkably crafted film, this devastating narrative of love, comes across as a true celebration of the tender, expectant spirit that lies deep within it." Hailing the film as "probably the best love story to have graced the screens in the last decade in Malayalam Cinema," Rejath RG of
Kerala Kaumudi described it as " a masterful piece of cinema that is sure to leave a long lasting impression in the hearts of moviegoers. R S Vimal has made a gem of a movie, an unforgettable love story of epic proportions." G. Ragesh of
Malayala Manorama rated the film 3.5/5 and described "Apart from being an inquiry into the unknown realms of human emotions such as love, revenge and envy the film has a smooth narrative which offers a glimpse into the socio-political milieu of the time." Akhila Menon of
Filmibeat.com gave a rating of 4/5 and wrote, "It is wonderful to watch the classic form of romance back on the screen, in its complete glory. A well-written script plays the backbone for the film" and "the only minus factor [of the film] is, Kanchanamala gets over-shadowed by Moideen certain points." Sethumadhavan of
Bangalore Mirror rated the film 4/5 and said, "Despite the story being so old, the screenplay is powerful enough to hook the audience and make one ignore a few loose ends. Whenever and wherever cinematic liberty has been taken, it does not come across as jarring." Shyamlee Ahmed of
The American Bazaar noted that the "powerful story is a far cry from the modern day puppy love stories coming out of Bollywood" and that the film "will be here to stay in our hearts "ennum" (forever), for its effervescent one of a kind eternal love."
Box office The film collected approximately 81 lakh on the first day of release and 1.25 crore in the second day, with
Malabar region contributing a major share. It collected 6.32 crore in 6 days and 10.5 crore when it completed 9 days from Kerala alone. The film collected 19 crores from 18 days from Kerala alone. On 14 October 2015,
Filmibeat.com reported that the film's gross collection crossed 21.8 crore, making it the biggest hit in Prithviraj's career. Within a month of release, the film's collection from Kerala theatres alone was 27.2 crore. It grossed about 32.67 crore and a net 25.56 crore from
Kerala in 42 days; the film's all
India gross crossed 37.50 crore for the same. The film grossed $107,666 (₹ 71.79 lakh) within eight weeks of its theatrical run in the US and after the 12th weekend at the UK box office,
Ennu Ninte Moideen is said to have collected a gross amount of £23,698 (₹ 23.40 lakh). The film collected an estimated 50 crore from Worldwide box office to become one of the highest grossing Malayalam films of all time, ==Awards and nominations==