Need help in how to call a method group from other form

Form1

public void radMenuItemViewReminder_Click(object sender, EventArgs e)

{

if (Convert.ToInt16(radMenuItemViewReminder.Tag) == 0)

{

radMenuItemViewReminder.Tag = 1;

frmReminder frmRem = new frmReminder();

frmRem.MdiParent = this;

frmRem.senderTag = (RadButtonItem)radMenuItemViewReminder;

frmRem.Show();

}

Form2

private void btnReminder_Click(object sender, EventArgs e)

{

frmMain mainObj = new frmMain();

btnReminder.Click += new EventHandler(mainObj.radMenuItemViewReminder_Click);

}

Please help me How to call Form1 event in form2 given event