The song is composed and written by Tony Kakkar. He initially worked with Pooja Bhatt, where he recorded a few songs for one of her films, which got delayed and shelved. She later recommended him for the producer of the film, Bhushan Kumar, where he offered him to compose a song for the film. The video of the song was used in the end credits of the film. The song is picturised on Bipasha Basu and Imran Abbas Naqvi, marking the debutBollywood appearance of Abbas, who had earlier worked in Pakistani cinema. The music video of the track was officially released through the YouTube channel of T-Series on 30 July 2014. The song was the first track released from the film. The full song was released digitally on 31 July 2014 as a single. It was included in the soundtrack of the album which was released on 8 August 2014. The soundtrack also contains an unplugged version of the song sung by Kakkar, and a remix version of the original song by DJ Shiva.
Critical reception
Original version
Kasmin Fernandes of The Times of India felt that "Singh does a commendable job" in the vocals. Writing for Rediff.com, Joginder Tuteja thought its "melody, lovelorn lyrics" and "quintessential" vocals by Singh make it an instantly catchy song. Apart from the positive response from the critics, the song received some negative reviews. Surabhi Redkar from Koimoi calling the composition by Tony Kakkar "quite repetitive", stated; "supposed to be a romantic number, the song fails to create any impact". He also panned the remix version of the song calling it "completely unnecessary".
Unplugged version
Surabhi Redkar from Koimoi reacted positively to the version, calling the song "decent number" stated; "This version being an unplugged one is a much more mellow than the original". Kasmin Fernandes of The Times of India reacted in a mixed way to the song; "Music director Kakkar comes on board as singer on the unplugged version of Sawan Aaya Hai, which sounds better thanks to the acoustic guitar and flute, but could have done without Kakkar's nasal twang".
The song was shot in a Mumbai studio within two days. The version of the song was picturised on Rajniesh Duggall and Surveen Chawla. The video of the song is directed by Ajay Kumar and Sanjukta Kumar. The song is sung by Arjun, Arijit Singh and Samira Koppikar. Additional English lines were included in the version which was written by Arjun. The song marks the third time Arjun covered a version sung by Singh, the first being "Tum Hi Ho" followed by "Kabhi Jo Baadal Barse".