Dear paridhanlok,
eBay Shops are subscription based and have a monthly subscription Fee.
The first month subscription is Free as it is a free trial period after which the monthly fees will be applicable.
Listing a product in the Shop Inventory Format for 30 days or good till cancelled is absolutely Free.
You can get more details on eBay Shop Fees at
http://pages.ebay.in/help/sell/storefees.html
Regards,
Preeti
Regards,
Preeti