How to retrieve data of logged in user through Session

I want to retrieve whole row of data from database when a specific user log in. and show it in my view of profile.

this is my Controller already assigned it a Session variable on ID, I now want to retrieve data from database through this U_ID.

public ActionResult Index(Account_Details log)
{
var obj = db.Account_Details.Where(u => u.Name.Equals(log.Name) && u.Password.Equals(log.Password)).FirstOrDefault();
if (obj != null)
{
Session["loginid"] = obj.U_ID;
Session["name"] = obj.Name;
return RedirectToAction("Welcome");
}
else
{
return View();
}
}

this is my Model where I've assigned a foreign key to Basic_Detail table in database. So, that I can get Basic_Detail row of data through U_ID