Per my knowledge society permission is only taken to see if you have any issues like mortgaged/pledged the said flat to any institutition or stood surety for someone or if any dues are pending, no claim by other legal heirs; if you are not having any such issues, then the society should not object to the sale of your shops even though you have sold the same without NOC! Only you will need to give an indemnity bond to the Society to indemnify them against any future legal issues cropping up which they do not know at this point in time!!
Disclaimer: I am not a professional lawyer!!