How old r Anwar n Zeenat?

I am clueless abt how old r Anwar n Zeenat? They don't look more than 30 years old then how come they adopted Zoya? Or it was either Anwar's or Zeenat's parents who adopted Zoya? They call Dilshad as Dilshad Bi. Do they hv kids? Cvs r clnfusing us wid dis😕.