Upon graduating high school, Zahir attended the Institute of Theatre and Arts of Kabul and joined the Kabul Armature Orchestra led by Fazel Ahmad Zekria Naynawaz along with his brother Kabir Howaida, Rahim Mehryar, Rahim Jahani and more. At this orchestra Zahir showed immense talent as a vocalist and earned a scholarship to learn operatic and eastern classical music at
Tchaikovsky Institute in Moscow in 1966. After Moscow he spend time in
Tehran in 1972. There, he performed the song "Kamar Bareek-e-Man" which became an instant hit in Iran, where for years many Iranian singers covered the song in concerts and on Iranian national television. Upon his return to Kabul, Zahir began his musical career which brought him an overnight success. He composed all his songs except 4 songs which he often credited to their original composers
Ahmad Zahir and Mashoor Jamal. The songs "Rasha dar dast baghban" and "Gar zolf preishanat" are of Ahmad Zahir and "Laila mah man shoda shaida" and "Ay mo telaie" are compositions of Jamal. Howaida was fond of tea and cigarettes. He also read many books about social and political issues. His favorite author was
Maxim Gorky and his favorite subject was
socialist and
social democratic ideas. Many of Howaida's songs are politically anti-establishment in nature. He often spoke out against the monarchy and the first president of the Afghan republic,
Mohammad Daoud Khan. While all artists who wished to appear on
National TV were authorized to sing in
Persian. Howaida after the fall of the republic of Afghanistan into the hands of the Marxist
communist regime found many opportunities on National Television and
Radio Kabul. He recorded most of his songs during this tenure, hosting a variety of shows on both mediums. After the fall of the communist government, Zahir and his family fled to
Germany. He toured the world with stops in North America, Europe and Australia for his farewell concert where he broke his vow and sang in Pashto. He followed the concert with the release of his final album "Ay Kash". ==Personal life==