There are many things-
1.) For new sellers first 100 listings are free.
2.) After that you have to Pay Rs 2 if you list an item for 7 days. If you chose upgrades you have to pay more.
3.) If your item sells there are 2 types of fees-
i.) Final value fee- It is a percentage of the amount you sold the item for and depends on the categories. For some categories it is 1%, for some it is 5% etc.
ii) Paisapay fees- Suppose the item you sold was for Rs 100. Ebay would take Rs 100 from the buyer, take its commission and send the remaining amount to your account. The amount it deduct is 4.5% + taxes. It roughly is 5.1%