Easy Multi Vendor Opencart

i have a question...Rather than creating Multi store..i am looking for simple features...Like giving dedicated login access to category sellers... what i mean here is , provide one category to one seller and other category to other seller... and have dedicated access for that seller only....who will be managing that category only..

any suggestions, notes or comments

do a quick search for multi vendor system. There are a couple of such extension in the store here

Be mindful, as to inevitability that some folks will not have a clue what they're doing even if they listen to and read explanations, that you're setting up a zoo and handing the inmates keys. Keep at least once-daily backups of database.