Hi HMRSS Gunawardana,
When you login to Microsoft Academic Search website and click the Edit button on it, it will take you to a page where you can edit the author info. From this page with the "Edit Publications" link, you can go to a page where you can edit the publications
of this author. Detailed instructions on this are given at "http:\\academic.research.microsoft.com\About\Help.htm#6".
Please let us know if you need further assistance.
Regards,