The brother-sister duo of Pakistan origin was a singing sensation in India and Pakistan in the 1980s. Nazia became a rage in India after she sang in Feroze Khan's "Qurbani", and then released her hit album "Disco Deewane".
Zoheb's new album, "Kismet", will be released in India soon. It will later be released in Europe and the US. The female voice in the album is that of Sehr.
Speaking to Eastern Eye, a leading British Asian weekly, Zoheb said: "Nazia and I had been working on songs for an album that was to be called 'Kismet' but soon she fell seriously ill. Before she passed away she had told me to make sure I carry on with my music but even then I could not bring myself to do it.
"Over the years, friends and family have been pushing me towards it and it is great to see the phenomenal response to the musical."
Zoheb, who also runs a media company in Pakistan, said: "I met Sehr when she was just 15 and I felt she sounded like a young Lata (Mangeshkar). She comes from a poor home and I do hope her Kismet links with the fortunes of the album."
Nazia's family has kept her memory alive through the Nazia Hassan Foundation, which will set up its first children's home just outside Karachi soon. Zoheb is working on his next Nazia project: "Nazia Hassan, The Musical".
He said: "Nothing would have pleased Nazia more than to see the amazing response to the latest album."