Educated initially at Khalsa High School and Government College in Sri Ganganagar, Singh obtained an arts degree from DAV College, Jalandhar. There, he began his professional career in 1961 by undertaking singing and composing assignments at All India Radio’s (AIR) Jalandhar station. Later, he studied to obtain a post-graduate degree in history from Kurukshetra University in Haryana. Throughout this time, and as a consequence of a natural talent that was spotted by his father, Singh learned music initially from a visually impaired master of Indian classical music, Pandit Chagan Lal Sharma and later from Ustad Jamal Khan of Maihar gharana, who taught and trained him in all the prominent styles of Hindustani Classical vocal tradition such as Khayal, Dhrupad, Thumri and others. Throughout his teenage years, he performed on stage and composed music. Although his father, who was a government employee, had hoped that he would become an engineer, Singh pursued his passion for music relentlessly. Like all parents in Indian middle-class families, his father aspired for him to become a bureaucrat. However, he also encouraged Singh and his siblings to learn music.

In March 1965, and without the knowledge of his family, Singh moved to Bombay, where there were many opportunities for music artists because of the Hindi film industry. He obtained work initially as a singer of advertising jingles and later progressed to playback singing.

Singh was still struggling to make a living in 1967 when he met the Bengali-born Chitra Dutta. She divorced her husband and married Singh in December 1969. Following the birth of their son, Vivek, the couple performed as a singing duo but it was not until the 1977 release of the album The Unforgettable that they found significant, and surprising, success. In the interval, the primary difficulty for them had been that the ghazal music genre was dominated by Muslim artists and especially those from Pakistan.

Among their subsequent duo recordings of the 1970s were Shiv Kumar Batalvi – Birha da Sultan (1978), Live in Concert at Wembley (1979) and Come Alive (1979). Of those released in the 1980s, “The Latest” by Sudarshan Faakir was the best selling album with his lifetime hit “Woh Kagaz ki Kashti…Woh Baarish ka Paani”. It was the first album by the duo with poetry of only one Poet. Ecstasies (1984) has also been described as “one of their finest”. The joint projects ceased in 1990 when their 20-year-old son, Vivek, died in a road accident. Chitra felt unable to sing following these events. Monica, Chitra’s daughter from her first marriage, committed suicide in 2009.

In 1990, Vivek (Jagjit Singh and Chitra’s son) died in a road accident at the age of 20. This came as a profound shock to Jagjit and Chitra Singh. They gave up music for a full year after the death. At the end of that period, Jagjit returned slowly to music, but Chitra announced her retirement and declared that she would not sing or record any more songs.

On 10 May 2007, in the presence of numerous political and diplomatic luminaries at an event held in the Central Hall of the Parliament of India, Jagjit Singh rendered Bahadur Shah Zafar’s famous ghazal Lagta nahin hai dil mera to commemorate the 150th anniversary of the Indian Rebellion of 1857.

The Unforgettable, which was the couple’s first LP, was an unconventional recording and it turned them into stars. The song “Baat Niklegi” from the album achieved great popularity for the Singhs. The Independent described it in 2011 as “ground-breaking … it became a transformative, before-and-after milestone in the history of Indian popular and ghazals music. It remains that.” Using modern arrangements, it consists of ten tracks that include two on which they sang as a duo and the remainder equally split between Jagjit and Chitra singing the lead. The Independent further noted that “This format of solo and duet performances from the first commercially successful husband-and-wife team in Indian popular music proved astonishingly successful.” Jagjit explained that “I was determined to polish up the genre and make it more acceptable to modern tastes, so chose simple poems and set them to simple tunes. I also introduced western instrumentation to make them livelier.” Thereafter, the couple worked both on solo and joint musical projects and performed concerts worldwide. There was success from involvement with the film industry and they amassed considerable wealth,.

Singh turned 70 in February 2011. To celebrate his 70th birthday he committed 70 concerts in different parts of the world. He toured the UK, Singapore, Mauritius, inter alias, in 2011 and was due to perform with Ghulam Ali in Mumbai but suffered a brain haemorrhage on 23 September 2011. He was in coma for over two weeks and died on 10 October at Lilavati Hospital, in Mumbai. He was cremated the following day at Chandanwadi Crematorium near Marine Lines in Mumbai.

A biography of Singh, entitled Beyond Time based on about 40 hours of interviews with him, was released in 2012. It was transcribed and edited by Ashrani Mathur. A biopic documentary by the name of Kaagaz Ki Kashti has been made on the life journey of Jagjit Singh, who broke through the norms and revolutionised the Ghazal scenario. The film traces the struggle and stardom in his musical career, the love & loss in his personal life and the scope and limitations in the music scenario of the times. The film directed by Brahmanand S Singh is currently available on Amazon Prime Video in India. It is expected to see worldwide release soon.