Hey dude..
If your listing is still not alive, then go to your "my baazee" section's "seller view"..Click on "loaded" and then from there delete the item that you dont wish to sell..
If its "open", then do the same by clicking on "open" rather than on "loaded"..If there has been bidding going on, on ur item then u'll need to delete the existing bids, before you can close the item..
Cheers!