AppleCare PLUS is a program that covers MOST, not all of the cost of a repair. You are still required to pay a co-payment, around US$100 per screen replacement, and you are limited to a certain number of replacements in a certain period of time..
In the US, that co-payment is about US$100, very similar to the Rs 9000 you mentioned.
Because you paid for AppleCare PLUS, you have NOT been charged the full retail cost of the repair. The full retail cost of a 13-in screen replacement, if you had to pay it all, is over US$500, or more than 44,000 Rs.
A screen replacement comes with a repair warranty against defects in materials and workmanship for a limited time. In the US, that period is 90 days.
I do not see defects on your screen from the pictures you posted. The pictures of the outside of your computer are not relevant to this discussion unless it has serious additional damage, which is also not evident from your pictures. If you meant to illustrate some damage, you would need to take larger pictures and explain what you see as damage.