Hi akamohanty,
I truly appreciate your concern and your wish to keep the site a healthy place for all.
Whenever you come across a member who you think wants to cheat other members, I will suggest, you immediately report the member via the Report this item link on bottom of every listing page.
eBay's Trust and Safety team works 24x7, and takes fast action against such reports. Your help will go a long way in making eBay a fun and safe place for all.
Thanks and Regards,
Sapana