I have been trying to log in to www.irctc.co.in sin 7:45 in the morning to book a ticket in Tatkal quota. But the site is not available. I get a message - 'Service Unavailable'. Last night I was able to log in but Tatkal quota opens in the morning. Is this a permanent pattern for www.irctc.co.in to not let users log in to book Tatkal tickets? Or I am the only one to experience it?