Public iCal : https://www.google.com/calendar/ical/6ppkf92sp3one0i7al7inkahm8%40group.calendar.google.com/public/basic.ics
Add the above link in your Calendar Application.
To Add this in your Google Calendar: http://chennaieventscalendar.blogspot.in/p/blog-page.html
To get Events notifications via Email and SMS : http://chennaieventscalendar.blogspot.in/p/email-sms-notification.html