Hi prabir999,
I hope you have checked up the boards policy on http://pages.ebay.in/help/policies/everyone-boards.html
Boards are a great place to discuss with your fellow users on what you can do to improve eBay and your business on eBay. As near_the_pits pointed out, boards are not a place to solicit sales, and such action could lead to Post Removal, Board Sanction and/or eBay Suspension.
If you find other users doing the same, kindly report such incidents using the
Contact Us - Board Policy Violation link.
Warm Regards,
Sapana