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BEGIN:VTIMEZONE
TZID:Asia/Calcutta
BEGIN:STANDARD
DTSTART:20000101T000000
RRULE:FREQ=YEARLY;BYMONTH=1
TZNAME:IST
TZOFFSETFROM:+0500
TZOFFSETTO:+0500
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BEGIN:VEVENT
UID:20260621T112339Z - 51601@OCM
DTSTART;TZID=Asia/Calcutta:20260601T210000
DTEND;TZID=Asia/Calcutta:20260601T220000
CREATED:20260621T112339Z
DTSTAMP:20260621T112339Z
LOCATION:My Company\, India
SUMMARY:AP Calculus - Rutvi
END:VEVENT
END:VCALENDAR