A Google Reconsideration Request can be sent whenever your website is restricted in Google's index because of receiving a notice about some unnatural links. By submitting a Google Reconsideration Request, Google will re-index your website and show up in the SERP rankings if the request has been accepted from Google.
Here are the steps that have to be followed for performing a Google Reconsideration Request.
Read Google Webmaster Guidelines thoroughly
A detailed reading and understanding of Google Webmaster Guidelines are required for the...