dont forget there are stations in IR where u hardly get passengers to book tickets ..one such example is OORGAUM ..i have booked tatkal tickets in KSK , rajdhani , YPR - HWH ,sesadri etc ..with no hassle at all ...i have went there at 10 am ..and at 10:00:25 my ticket is booked...the same way there are many isolated stations where people book ticket easily ..