Avent Feeding bottle caps in Chennai?

Does anyone know if i can find Philips Avent bottle dome caps alone here in chennai? Not sure how but two of my caps got scratched or something?:spin & started kinda melting when i steam sterilise them. Not exactly 'melt' but kinda get soft to touch around that scratched part.

Though they aren't brand new to start with, they are from my SIL's limited use stash. I checked the bottles anyway & they dont have any scratch or anything & look all new.

Or may be any other brand caps that would fit them right? i have no idea which one would! help me please!!

 

Hey eandian thanks! almost every baby shop in the city is selling the bottles.. came to know avent is selling the accessories separately- 4 pack bottle caps & so i tried calling up few shops but they dont sell the caps pack. Wondering if i can find it anywhere else!

 

Oh really? thanks dear.. will try there, else add it to my 'to be bought' list to my friend from US