Do you even hear yourself?
Are you seriously suggesting that somehow India's domestic corrdiors have ANYTHING to do with its need to connect to the markets of central Asia. Are you that blinded by nationalism to put forward the idea that matches a ridiculous claim that you dont need international trade because you are already too occupied with domestic one?
To add to that, your post reads like some kids theory that because Pakistan has no effect in the internal trade of onions and tomatoes inside India, India need not bother with oil and gas from the central Asian states.
Please come up with a better and less whiny excuse regarding the utility of CPEC than that.