The first parameter for the {{Facebook Page}} template is the name and ID of the Facebook account. This can be found in the page's URL. For example: if the URL is http(s)://www.facebook.com/pages/example/id, then the account name is example and id is the series of numbers after the account name. The second parameter is the description or display name.

In this example, the Facebook user account is wikipedia and the id is 103767749661773 description in the link is Wikipedia:

 {{Facebook Page|id=wikipedia/103767749661773|name=Wikipedia}}

Wikipedia - ఫేస్‌బుక్ పేజీ