Hello,
To Revise your listing, Go to you My eBay>>All Selling>>Click on “Selling”>>there are action buttons against all your listings, you can select “Revise your item” and change the required details as mentioned above.
However, you can revise your listing under the following circumstances:
If an item has received no bids or purchases and does not end within 12 hours, you can revise anything in your listing except the selling format (for example, you can't change your auction-style listing to a fixed price listing).
To get more information on what you can revise in your listing, do check the following link:
http://pages.ebay.in/help/sell/edit_listing.html
Regards
Abhishek
Seller Marketing Team
Regards
Abhishek
Seller Marketing Team