Feroz Khan is credited as "Firoz Khan".
The film's direction was heavily inspired from Mughal E Azam.
Feroz Khan wore a wig for the first and last time in his career (barring disguises in movies). His wig was slightly long in the back, making him look a young Fardeen Khan.
In the movie Nadir Shah, P.Kailash says "Insaaf Ka Yeh Hi Taqaza Hain...". Years later Feroz Khan had Aruna Irani repeat this same dialogue in Qurbani.
Satyen Kappu's character spoke with a deep raspy voice in Nadir Shah. Years later Feroz Khan made Satyen Kappu's character in Dharmatma speak the same way.