[2] Rajesh Roshan scored for Kunwara Baap (1974) and then in three back-to-back hit films: Des Pardes, Man Pasand, Lootmaar.

He went on to compose melodious tunes and made Kishore Kumar sing them in films like Mama Bhanja, Doosra Aadmi, Swami, Priyatama, Yehi Hai Zindagi, Ek Hi Raasta, Swarag Narak, Inkaar, Khatta Meetha, Baton Baton Mein, Do Aur Do Paanch, Kaamchor, Hamari Bahu Alka, Jaag Utha Insan, Bhagwaan Dada, Ghar Sansar followed by films with Rajesh Khanna like Janta Hawaldar, Nishaan, Babu and Aakhir Kyon?.

He has won multiple Filmfare Awards and other accolades for Best Music Director for films like Kaho Naa... Pyaar Hai and Koi... Mil Gaya.

[3][4] Rajesh Roshan has often been accused of plagiarism; journalist Karan Thapar talks of at least 39 "copied tunes".

[6] These include some of Roshan's best-known titles, such as "Jab Koi Baat Bigad Jaye" (Jurm, 1990) being inspired by "Hear The Whistle Blow A Hundred Miles" from Lester Flatt and Earl Scruggs (released in 1967) and "Aye Dil Laya Hai Bahaar" (Kya Kehna, 2000) inspired by Neil Sedaka's 1959 hit single "Oh!