Complex sentence: Shaan debuted in 1990 with Javed Fazil's Bulandi (Nadeem's hit Film) where he starred opposite Reema.WHen Bulandi was released Shaan was belived to be only 17 years old.
Split into simpler sentences: Shaan debuted in 1990 with Javed Fazil's "Bulandi" (Nadeem's hit film) where he starred opposite Reema. When "Bulandi" was released Shaan was belived to be only 17 years old.