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Actually Rajesh, This can’t be answered definitively without knowing what the audiences are - it may or may not be possible to do at all depending on this. Doesn't help, much apologies.

Hi OP, Not sure what your developer is planning on using but you could easily have some sort of combination of a blog + shop using Wordpress and Woo-Commerce. Why you would specifically want a blog on the homepage and then a shop within a folder is beyond me (surely the otherway round; e-commer site + a blog), but I know for a fact it would be very easy to do for the average Wordpress developer! Kind regards and good luck! Nick