Hi @ShezaFatima20, as @Elmtec-Adam mentioned in his earlier post, you might want to adjust the camera exposure for the interior shot.
It looks like you have the sphere lights on the ceiling with 200 W radiant power.
With the default exposure setting that you have (14.278), the render for Scene 3 is below.
If you were to lower the exposure value to 12, then you will see a much brighter render as you can see below.
