To view this calendar alongside your own Google Calendars, perform the following steps:
1. Log into your Google Account and navigate to http://google.com/calendar.
2. On the left side, under "Other Calendars", there is a text box - into this type "rando.iisc@gmail.com" and hit enter.
A screenshot demo can be seen here.
Due to a bug in GoogleSites / Google Calendar you might not be able to turn on/off individual calendars at the moment. As a temporary workaround you use this page instead.