Indian Railways official website continues to be a MFA with lot of ads on the homepage along with pop-ups, trying to make sure it can make the most money out of each visitor they receive. Back to the point , if you are looking for easy schedules or calendar of a specific train on the Indian railways website, it would take atleast a hour’s time for you to note down all the results one by one manually because there is no quick results feature.
Clear Trip which has also started offering railways ticket booking with a small amount of fees, is really excellent website because they offer you with multiple seat availability search on a given day along with different parameters like number of searchs, type of class etc. Different services they offer are online train tickets, train time table & previous and next day instant ticket search.
I recently found that clear trip is offering tickets availability calendar which can help you out in tracking all the days at once for a specified destination with a date range of 60days period. Check out the service here