Sunayana Suresh critic of Times of india gave 3 starts out of 5 and stated that "Dhananjaya has good scope to show his acting prowess in a role that grows from edgy to absurd, and he excels".[4] A Sharadhaa critic of Cinema Express stated that "the big question is whether the hardcore fans of Dhananjay will accept him in this new avatar." and gave 3 stars out of 5.[6] A critic from OTT Play gave 3 stars out of 5 and stated that "For a film that's rigged with technical deficiencies, Twenty-One Hours is nevertheless an honest and exciting shot at an overblown genre. Very few films in the current generation question the audience's moral and ethical tendencies, and although director Jaishankar Pandit errs in terms of tonality and plotting, he still manages to put together a worthwhile watch that offers many pleasant surprises. The film's for you if you like a bit of genre subversion and a few twists along the road."[7]
