I have to create a content approval workflow of two level.

i.e.- whenever content is added/modified, workflow is triggered and is sent to reviewer group(1st level) and once it is approved by this grp then it is sent to publisher grp. After publisher grp approves the content, it starts appearing on site.

Mail has to be sent at every level.

Can this be achieved by modifying OOB content approval Workflow? If yes, then how?

If no, then how to achieve this? point to right article will al

Hi Ritesh,

Two days before I have posted article in Technet wiki regarding SharePoint workflows. It should exactly matches your requirement. Please check it out.

http://social.technet.microsoft.com/wiki/contents/articles/20276.how-to-create-approval-workflows-in-sharepoint-using-infopath.aspx

Feel free to ask questions.