This is a process made by common people in the basis of first come first serve. this system is common in many of the PRS ticket counters for Tatkal Booking in Delhi also and palakkad too. I used to book tatkal tickets in the same manner by reaching a PRS counter early morning 4 o clock, in that time also i used to find two or three persons before me in off season, in vacations persons used to come in midnight itself.