Pak has only AM 39 variants of Exocet, which have only 70km range.
Do you really think Indian assets will venture in the range of that missile?
Its the Pak assets that will need to get within range.
Meanwhile, primary offensive weapon on Indian ships is Brahmos with min 290km range, probably now increased to 400km. So if pak tries to launch Exocet via ships, do you realise that Pak ships will have to cover a distance of 220km-330km while evading Indian attacks to be able to launch that exocet? And that from the outside perimeter of the carrier strike group, there are going to be multiple ships with similar weapons at various distance with overlapping strike range.
The story is similar if Pak launched Exocet from air.
Even a submarine launch will be risky.
Forget exocet, you are better off with your own babur.