So I've been noticing that some people have been confused about Khushi's burns, so I'm putting this up as a reference. Now I'm not artistic in anyway possible lol so these diagrams are the best that I can do:
So basically when the accident had happened, the rods came falling down on Khushi and she had landed on her front, the rods landing on her back, mainly getting her left. Her face was turned to the left, which ended up getting the left side of her face, so if you were to see her, or say Arnav is looking at her, it appears on the right.
Hopefully this helps a bit lol. If there's any other confusion, ask me in the comments.