Hi ,
I understand your question as  whenever portlet is being called from  another portlet then you can want to show a specific view ,
You can use the queryString attribute of the portlet:runtime tag and retrieve that value in included portlet and based on that you can have initial page .
Portlet A

<liferay-portlet:runtime querystring="initalPage=abc.jsp"  portletname="Portlet B" instanceid="instanceId"  ></liferay-portlet:runtime>

Portlet B
​​​​​​​

if(${param.initalPage eq abc.jsp}) {
//include page
}else{
//include page
}