Asad-Ayaan
Both the brothers name starts with the alphabet "A"
Nikhat-Najma-Nuzat
all the three sisters name starts with "N"
Also do you noticed the alphabet 'A' common alphabet in all the khan siblings
also its interesting that none of the siblings shares the starting alphabet from parents ie Rashid-Dilshad-Shireen
i'm saying this cz many parents keep their kids name matching with others or parents name