Is there any way to pass the data from one controller to another in ASP.NET MVC?

public IActionResult LoginSubmit(Employee obj)
{
    var abc = _db.Employees.Where(x => x.EmailId == obj.EmailId).FirstOrDefault();
    var passAuth = _db.Employees.Where(x => x.Password == obj.Password).FirstOrDefault();

    if (abc != null && passAuth != null)
    {
        return RedirectToAction("Index", "EmployeeLeaves");
    }
    else
    {
        return RedirectToAction("Login","Employee");
    }
}

The code above is my employee controller and I want to pass the id to the Employeeleaves controller (shown below) so that I can use it and fetch data from both the tables.

Also the login authentication condition is pretty bad. Please suggest the logic for that also. Is there any way to then fetch data from both the tables in EmployeeLeavesController using LinqJoin

private ApplicationDbContext _db;

public EmployeeLeavesController(ApplicationDbContext db)
{
    _db = db;
}

public ViewResult Index(int EmployeeId)
{
    //var employeeLeaveEMp = _db.EmployeeLeaves.Include(c => c.Employee).ToList();
    //List<Employee> employeeList = _db.Employees.ToList();
    //List<EmployeeLeaves> employeeLeaves = _db.EmployeeLeaves.Where(emp => emp.EmployeeId == EmployeeId).ToList();

    return View();
}