Open mail, click More above the message list, and then click Preferences. Now click Access & Delegation. On Access to Mail & Calendar page, click a listed person or group or add a new person or group as ur desire. Under Automatic Forwarding, select one or both of the following to specify the types of meeting invitations and notices to forward:
as I am the chair or I am a participant
Now in For notices associated with calendar entries I have marked as private field, select one of the following:
Do not forward cancels forwarding of entries where Mark Private is selected.
Forward without private details forwards entries without including private details (for a meeting, the chair and subject of the meeting).
Forward with full details forwards entries including the private details.
And click OK.
For more clear concept please visit these two references: