Zaman performed with his brother, Ustad Qamar-uz-Zaman, carrying forward the Pakistan's own "Kasur Gharana"[3] traditions of the art of Khayal music.

In composing of film songs, he was affiliated with the renowned Pakistani music director Nisar Bazmi for 18 years.

[citation needed] Zaman remained active as a music performer in later life, particularly in partnership with his brother, Ustad Qamar-uz-Zaman.

[6][7] Described as the "more articulate of the two",[2] Badar uz Zaman expressed views on topics including India-Pakistan cultural exchange,[2] and the 2011 arrest of singer Rahat Fateh Ali Khan.

[26] Zaman's contributions toward the preservation and promotion of classical music in Pakistan and sole entity representing Kasur Gharana are recognised all over the Indian subcontinent.