If you go to IRCTC website to book a ticket today you will see a notice on the website that you can book a Tatkal ticket between 10 AM to 12 PM. The all new rules are to stop misuse of Tatkal ticket booking service. If an individual user go for a tatkal ticket he will hardly get one, if he go to an agent the agent will manage one for him on a premium rate, premium rate is almost 3 times more than actual rate.
Previous tatkal ticket booking time was 8 Am to 10 AM but it is 10 AM to 12 PM. And many other rules are now effective to take down touts. By the time how the service will be improved, we still have to wait and watch but it seems things will get a little (?) better because touts won’t stop.
Now normal users can book Tatkal ticket from 10 AM to 12 PM and only two ticket are possible in a single day on a single IP address, so having more than one computer or more than one account won’t help touts to book tickets as normal users.
IRCTC agents can book ticket after 12 PM and only one ticket for one train, this rule is same for online and offline ticket booking agents. On ticket counter there will be a separate line for Tatkal ticket booking from 10 to 10.30 AM.
Indian railway also managed for more powerful servers to handle online traffic load, this may help online users.