Seat availability calendar feature on Trainman lets user know the vacant berths count if seat is available or waiting list count if the seat is unavailable. User can enter train number and select origin and destination stations for this train from the drop-down list. Since, user can check the reservation status for entire 4-month in one view it becomes really easy to compare the availability for different dates and classes quickly. User can also know the ticket price for each class for both general and tatkal quota. This way user can take a final decision on dates before booking the ticket on irctc.