Praak was born as Pratik Bachan in Chandigarh. His father, Varinder Bachan, is a Punjabi music producer and composer. He started his career as music director with name of Prakky B. In 2012, he met lyricist Jaani and started collaborating with him under the name `B Praak`. In 2013, they released their first song Soch sung by Harrdy Sandhu and composed by him. The song became a chartbuster and is considered best Punjabi song of year 2013.

He later debuted as singer in 2018 with the single Mann Bharrya.[citation needed] He also sang more songs such as Bewafaai, Mastaani and composed tracks such as Qismat, Naah, Kya Baat Ay, Hath Chummne, Guitar Sikhda in the same year. He also produced music for Qismat, a film inspired by his song of the same name, for the first time in his career with lyrics by Jaani.

Praak made his Hindi film debut in 2019, first as a singer with the song Teri Mitti from the Hindi film Kesari starring Akshay Kumar and Parineeti Chopra, written by Manoj Muntashir and composed by Arko Pravo Mukherjee, and months later as a composer with a recreation of his song Naah, titled Naah Goriye, which was featured on the soundtrack of the Ayushmann Khurrana-starrer Bala. During this time, he also crooned a promotional song featuring Kumar, Ali Ali, which was featured on the soundtrack of the film Blank. He then sang a remake of the popular song O Saaki Saaki for Batla House, written and composed by Tanishk Bagchi, alongside Neha Kakkar and Tulsi Kumar. He next reunited with Kumar for the comedy-drama film Good Newwz, crooning the song Maana Dil, composed by Bagchi and written by Rashmi Virag. Additionally, he recorded a reprise version of the song Dilbara from the 2019 remake of the film Pati Patni Aur Woh, which was composed by Sachet-Parampara and written by Navi Ferozpurwala, and again in his duet with Sunidhi Chauhan for the song Bharat Salaam, which was written and composed by Mithoon, and featured on the Hindi version soundtrack of Hotel Mumbai.

In the same year he released Pachtaoge sung by Arijit Singh, composed by him and written by Jaani featuring Vicky Kaushal and Nora Fatehi. He also sang his first Telugu song Suryudivo Chandrudivo, for the film Sarileru Neekevvaru featuring Mahesh Babu.

In 2020, he released tracks such as Kuch Bhi Ho Jaye, Besharam Bewaffa, Kyon, and Baras Baras, and he composed the songs for Ammy Virk`s film "Sufna" with lyrics by Jaani. He then released the single Mazaa and Baarish Ki Jaaye. Praak won the National Film Award for Best Male Playback Singer in 2021 for his rendition of Teri Mitti at the 67th National Film Awards.

In 2019 Filhall song was released starring Akshay Kumar and Nupur Sanon was released and in 2021 the sequel Filhall 2 Mohabbat was released. Both songs became hits. In July 2021, he sang Ranjha that starred Siddharth Malhotra and Kiara Advani which became a super hit. Another song was released from film Shershaah named Mann Bharrya 2.0 which was a recreation of B Praak`s Single Mann Bharrya, recreated by B Praak himself along with Jaani. In September 2021, a sequel to his much popular soundtrack of the film Qismat 2 was released in which he served as music director for all songs and composer for two songs with lyrics by Jaani. In 2022, his first Bollywood project as music director came in Akshay Kumar`s Bachchan Pandey in which he sang two songs Meri Jaan Meri Jaan and Saare Bolo Bewafa with lyrics by Jaani.