A Hindi remake of Menon's Tamil movie "Vinnaithaandi Varuvaayaa", the film also features Manu Rishi and Sachin Khedekar. The music of the film is composed by Oscar winner A R Rahman and it is being distributed by Fox Star Studios. The story of the film revolves around Sachin (Prateik), a regular 22-year-old engineering graduate from a middle-class family in Mumbai, who is in love with cinema and wants to carve a niche for himself in filmdom. But it was not easy to fulfil the dream -- like many others, he struggles and struggles and his only source of survival is his pocket money.

While waiting for his big break, he meets Jessie (Amy Jackson) and instantly falls in love with her. Jessie is a beautiful, elegant and smart girl, but belongs to an orthodox Malayali Christian family, where watching movies, partying or falling in love are taboo. Jessie, from her end, tries to forge a friendship, believing that hiding their feelings under the umbrella of friendship would save them heartache, tears and a full-blown family drama.

Ekk Deewana Tha is described as an intense, yet feel-good love story of two completely different characters and how they cooperate with the pangs and pleasure of first love. This is Prateik's second solo venture after My Friend Pinto. However, he has been part of multi-starrers like Jaane Tu Ya Jaane Na, Dhobi Ghat and Aarakshan.

Well in sync with the theme of "Ekk Deewana Tha", the music of the film was launched with much fanfare against the backdrop of the iconic Taj Mahal in Agra. Rumours are abuzz that Prateik Babbar and Amy Jackson are dating each other ever since they met on the sets of the film, but they refuse to confirm or deny it. Prateik admits he would love to act with Amy again.

A R Rahman was caught up in a controversy following objections from a Christian group over the use of the word "Hosanna" in a song from the film. The Mozart of Madras clarified saying he didn't intend to hurt anyone's sentiments. "As with any film project I work on, I had spent several months researching before composing and writing all the songs for 'Ekk Dewaana Tha' and had consulted friends who are Christian in particular about the use of the word 'Hosanna' in this song," Rahman said.

Rahman rarely gets involved in promotional activities for any film but he agreed to shoot a promotional video for the film, while singing a track "Kya hai mohabbat". Prateik's last solo release "My Friend Pinto" failed to rake in moolah at the box-office, so now he pins hope on this film.