Composed by Sachin–Jigar, the song is sung by Arijit Singh and Rekha Bhardwaj, with lyrics by Dinesh Vijan Priya Saraiya.
[4][7] Sachin Sanghvi from the composer duo Sachin–Jigar stated; "We waited six months to get Rekha Bhardwaj and Arijit Singh together for the first time for "Judaai".
[8] The released music video consists of several snippets from the film, showcasing various phases of Raghu's (played by Varun Dhawan) life.
Joginder Tuteja writing from Rediff.com applauded the "unconventional pairing" of Bhardwaj and Singh: "Both singers are known for their quality output and it is good to hear them together in this offbeat duet".
[15] The Times of India's Kasmin Fernandes wrote; "Bhardwaj starts off the song with her restrained yet powerful vocals and the pace picks up when Singh comes on.
Vijayakar thought the lyrics have an "unnecessarily high proportion" of Punjabi, though some of the "lines connect, with their simple familiar language".
[18] According to Surabhi Redkar of Koimoi, "Judaai" proved "how versatile Sachin-Jigar are since they are also the composers who have given us peppy numbers in the past".