Availability shown in Available Berth Column. To show exact Booking will be complex, which may get calculated later on (like i did for NDLS in SDAH DRNTO)!!
Net Booking is Difference of Last Station Available Berth & Current Station!!
Like NJP Net Booking: Vacant Berth NCB - Vacant Berth NJP
- means more Alight here & + means more board there!!