Roopkumar is the son of the late Pandit Chaturbhuj Rathod, the classical luminary – an exponent of the rare and arguably the oldest style of singing i.e. Dhrupad. He belonged to the "Aditya Gharana of Jamnagar". Pandit Rathod has trained and groomed many well known names like Kalyanji – Anandji, Manhar Udhas and many more. He is famous throughout Bollywood as an excellent playback singer and music director having also performed extensively with Anup Jalota as a percussionist. Roopkumar has two brothers, music composer Shravan Rathod (part of the Nadeem-Shravan duo) and singer Vinod Rathod. He is married to Sunali Rathod who was bhajan singer Anup Jalota's first wife, before she fell in love with Roopkumar who was Anup's tabalchi (tabla player). They have a daughter named Surshree or Reewa who is a singer herself.
The fourth son to the Dhrupad Maestro, Pandit Chaturbhuj Rathod, Roop Kumar, was initiated into the world of music in his very early years. His journey began as a tabla player and he went on to become one of the most sought after tablists by almost all the ghazal singers in the 80s. His tryst with playback singing began in the year 1989 with the song, 'Main Tera Aashiq Hoon', composed by Laxmikant Pyarelal for the movie 'Gumraah.’
The song "Sandese Aate Hai", from the movie 'Border', became one of the major breakthroughs of Roop Kumar's career. It soared to an unprecedented level of popularity, becoming an anthem of sorts for the nation. Roop Kumar has sung a number of songs in Gujrati, Hindi, Marathi, Tamil, Telugu, Bengali, Oriya, Assamese, Nepali and Bhojpuri films.
Apart from playback singing for films, Roop Kumar's other thrust of interest is live concerts. With his wife Sunali Rathod, he travels all over the world and performs at a number of concerts including in countries like US, UK, Dubai, East Africa, Singapore, etc. with their renditions of various genres of music spanning ghazal, sufi, light classical and film songs.
Roop Kumar also performs live-on-stage, with artists like Trilok Gurtu, Ranjit Barot and Abhijeet Pohankar in fusion concerts. He has collaborated with Trilok Gurtu for a fusion based album, 'Beat of Love', released in December 2001 and a jazz based album, 'Broken Rhythms', released in October 2004.
In August 2005, the comedy serial Sarabhai vs. Sarabhai featured Roop Kumar and Sunali Rathod in one of their episodes that showcased a friendly musical contest.
Roop Kumar, along with wife Sunali, won the title of 'Ustaad Jodi' on 'Mission Ustaad', a musical television reality show aired in February 2008, that aimed to create awareness about social causes.
He recently released a sufi album along with Sunali Rathod called Kalmaa."Brijlo" બ્રીજલો (2015) (Gujarati Film) (Bas Ek Chance)Kaahe sataaye (2014) (Hindi Film) (Rang Rasiya)Izhaar Maine Kiya Nahi (2014) (Hindi Film)[Mujhko Khabar Hai Ke Tu]Pitruroon (2013) (Marathi Film) [Daya Ghana Re]Nedunchalai (2013) (Tamil Injathea)Bharatiya (2012) [Bagh Ughaduni Daar]Maharana Pratap: The First Freedom Fighter (2012) [Veer Pratap, Neela ghoda, Tha Hawaon Se Bhi Tej]Kevi Rite Jaish (2012) [Kevi Rite Jaish]Agneepath (2012) [O Saaiyan]Khokababu (Bengali) (2012) [Mon Kande Pran Kande]Aye Raat Dheere Chal – The Touch of Love (3 movie)Nee Paata Madhuram - The Touch of Love (3 movie) Telugu versionTanu Weds Manu (2011) [Piya]Thamassu (Kannada) (2010) [Karagadiru]Madrasapattinam (Tamil) (2010) (Pookal Pookum)Veer (2010) [Salam Aaya]London Dreams (2009) [Barson Yaaron]Vaamanan (Tamil)(2009) (Oru Dhevathai)Rab Ne Bana Di Jodi (2008) [Tujh Mein Rab Dikhta Hain]Coffee House (2008)Drona (2008)Anwar (2007) (playback singer – Maula Mere)Pyar Kare Dis: Feel the Power of Love [Sindhi] (2007)Shiva (2006)Kokila (2006) ("Snehama...")Bhagmati (2005) (playback singer)Veer-Zaara (2004) (playback singer)Madhoshi (2004) (playback singer)Tumsa Nahin Dekha (2004) (playback singer)Veer-Zaara (2004) (performer: "Tere Liye")Lakshya (2004) (playback singer)Tum – A Dangerous Obsession (2004) (playback singer) (as Roopkumar Rathod)Armaan (2003) (playback singer)Baaz: A Bird in Danger (2003) (playback singer)Jism (2003) (playback singer)Gunaah (2002) (playback singer)Lal Salam (2002) (playback singer)Filhaal... (2002) (playback singer)Kitne Door Kitne Paas (2002) (playback singer) (as Roopkumar Rathod)Bas Itna Sa Khwaab Hai (2001) (playback singer)Rahul (2001) (playback singer)Rehnaa Hai Terre Dil Mein (2001) (playback singer)Censor (2001) (playback singer) (as Roopkumar Rathod)Minnale (2001) (Tamil playback singer : "Venmathi venamathi")Gaja Gamini (2000) (playback singer)Dil Pe Mat Le Yaar!! (2000) (playback singer)Krodh (2000) (playback singer)Mela (2000) (playback singer) (as Roopkumar Rathod)Mother (1999) (performer: "Pardesi to hain pardesi" (male))Hogi Pyar Ki Jeet (1999) (playback singer: "Khamosh Raat")Thakshak (1999) (playback singer: "Khamosh Raat")Dillagi (1999) (playback singer)Sarfarosh (1999) (playback singer: "Zindagi Maut Na Ban Jaye")International Khiladi (1999) (playback singer) (as Roopkumar Rathod)Laawaris (1999) (playback singer)Hu Tu Tu (1999) (playback singer) (as Roopkumar Rathod)Godmother (1999) (playback singer)Hum Saath-Saath Hain: We Stand United (1999) (playback singer)Mother (1999) (playback singer)Vinashak – Destroyer (1998) (playback singer)Hero Hindustani(1998) (Aisi Waisi Baat Nahi)Kareeb (1998) (playback singer)Border (1997) (playback singer) (as Roop Kumar Rathore)Prem Granth (1996) (playback singer) (as Roop Rathod)Bhairavi (1996) (playback singer) (as Roopkumar Rathod)Gaddaar (1995) (playback singer)Naajayaz (1995) (With Co-singer Kumar Sanu)Raja (1995) (playback singer) (as Roop Singh Rathod)Gumrah (1993) (playback singer)Angaar (1992) (playback singer)Zeher (2005)Madhoshi (2004)Woh Tera Naam Tha (2004)"Nazar" (2005)"Woh Lamhe" (2006)"Life Express" (2010)