I am so happy as i saved money instead of going for agent. I booked three slots today exactly at 5:47pm. I observed that website is open only for 3 minutes i.e., 5:47pm to 5:50pm. But when i called 1800-258-1800 which is toll free passport customer care number, they asked me to lo-gin at 6:00pm sharp. But i tried from 5:45pm and luckily in two continuous days, i booked 3 slots for me and my parents. And as they give 6′o clock time to everyone, website gets so slow. So try from 5:45pm. Exact time is 5:47pm to 5:50pm.