King is Fine is Solid Mode but in Rendered mode its missing something

[Rao]

[FedPete]

Can not only on a simple screen shot. It can be the way you have created a material!!

Check you face normals ! pointing outwards !

[Capricas_Kirito]

Quick and easy way to see what part(s) of your model will be invisible is to turn on Backface Culling

[Rao]

Extremely Sorry to Cause trouble. it was a silly mistake. reference image by mistake was taken as texture material.