The film opens with Vasudha stepping off a bus, while an elderly man, Hari, seeks help from a psychiatrist due to hallucinations involving his wife.

His daughter-in-law, Avni, accompanies him to his wife’s funeral, where he secretly takes her ashes and leaves behind a diary for his son, Saanjh.

However, after learning from the police that her husband Hari murdered five American journalists and is part of a terrorist group, she fears for her son's future and accepts Aarav’s offer.

He shares the story of his mother, a cabaret singer who raised him as a single parent and fell in love with a man who tragically attempted suicide due to their impoverished state.

Determined to free Vasudha from her guilt, Aarav travels to Bastar, where Hari is accused of the killings, in an attempt to prove his innocence.

On 23 October 2013, Vishesh Films and Fox Star Studios extended their partnership by announcing a three-film deal, which included CityLights, Hamari Adhuri Kahani, and Mr.

[12] The lead cast of Hamari Adhuri Kahani was finalized on 23 October 2013, with Vidya Balan and Emraan Hashmi taking on the main roles, marking their third collaboration after The Dirty Picture (2011) and Ghanchakkar (2013).

[13][14] On 15 December 2014, reports surfaced that Amala Akkineni would make a cameo appearance in the film, where she would sing and enact the title song.

[16] Initially, the first schedule of Hamari Adhuri Kahani was planned to be extensively shot in Cape Town, South Africa.

[18] A portion of the film's climax was shot on 3 October 2014, where Vidya Balan and Emraan Hashmi participated in the immersion processions on Kolkata's crowded roads, with the iconic Howrah Bridge in the background.

Director Mohit Suri mentioned that while Dubai is often portrayed for its modern, high-tech buildings, he wanted to capture its softer, romantic side.

"Zaroori Tha" song from the film was originally a soundtrack of singer Rahat Fateh Ali Khan's album Back 2 Love.

[32][33] Meena Iyer of The Times of India rated Hamari Adhuri Kahani 2.5 out of 5 stars, stating that while the film "lacks soul," she praised the performances of the lead cast and described the music as a "soothing balm".