Bollywood Hungama’s review says Ek Din handles a complicated love story in a simple, relatable and visually appealing way, with Japan adding strong charm. It praises Sai Pallavi’s Bollywood debut and Junaid Khan’s controlled performance, but says the second half loses impact due to stagnation and some unconvincing plot points.

DNA’s review says Ek Din is let down by poor writing and a weakly developed romance, despite a decent attempt and earnest performances. It calls Sai Pallavi’s simplicity and sincerity the film’s only real bright spot, while Junaid Khan’s bland role and the underwhelming screenplay fail to make the love story memorable.

Pinkvilla’s review says Ek Din is a sincere, warm romantic drama that works best in its micro moments, silences, witty dialogues, scenic visuals, and music. It notes the first half is slow and some conflicts feel underexplored, but the second half finds stronger emotional rhythm, with Sai Pallavi and Junaid Khan delivering soft, believable chemistry.

News18’s review calls Ek Din a simplistic, bland romance that confuses subtlety with shallowness. It says Sai Pallavi deserved a stronger Bollywood debut, while Junaid Khan is stuck with an underwritten role that gives him little spark or emotional range.

Koimoi praises Ek Din as a beautifully written, emotionally engaging romance that turns a one-day love story into a memorable, heartfelt experience. The review strongly appreciates Sunil Pandey’s direction, Sai Pallavi and Junaid Khan’s performances, the Japan visuals, music, and the film’s strong emotional finish.

Times of India calls Ek Din a sweet, breezy romance with an unconventional memory-loss premise and pleasant emotional moments. The review praises Sai Pallavi’s warmth, Junaid Khan’s socially awkward charm, and the Japan visuals, while noting that the film has clichés, slow patches, and some contrived plot points.

Ek Din is an engaging but uneven romantic drama that starts well, with a brisk first half and a fresh pairing between Junaid Khan and Sai Pallavi. The second half loses steam, the climax feels confusing, and the film lacks lasting emotional impact, though Sai Pallavi stands out strongly.