The Calender is a Google based application so if you are not logged in with Google account, you will always get the time in UT. (if you have changed the time zone setting in Google to IST then it will show time in IST)
Use it for your location in India, add 5 hours and 30 mins to it to convert to IST.
General Astronomy Events (General Interest to all, although it may not be observable in India)
SPACE Events - Open to all (SPACE conducted events open to all)
'Dont Miss' Astronomy Events (Of high interest specially in India due to observability, rareness, visual impact or importance)
SPACE events - Exclusive (SPACE conducted events for SPACE associated clients only)