don't know i am right or not, but i have overcome with following code,and its working for me.
if($request->method=="edit")
{
/*we are in edit mode details of given news ID should be attached*/
$curNews=News::find($request->newsID);
if($curNews==null)return back()->withErrors(["Unable to Edit News:No Data Found For Given News ID"]);
foreach($curNews->toArray() as $key=>$val)
{
$data[$key]=$val;
}
}
return view('adminarea.news.news-addedit',$data);