In a normal outlook calendar we have the ability to send invitations to a group of people, however I am not sure as to how can I achieve this when using a sharepoint calendar. I do not see the “invite attendees” option when creating a meeting request.
Any suggestions if this is possible or there are any 3rd part tools.
You can achieve by creating custom solutions.
srutyraj,I would suggest actually connecting the calendar to Outlook to use that functionality. At the calendar list view, use Actions > connect to Outlook. This gives you all the fuctionality of Outlook while allowing you to use the GAL (which includes Distribution