I understand your frustation. You yourself say that most of the tickets have been booked through online by Agents. (You are not saying that the Agents in connivance with the counter clerks have managed to have the tickets booked by ignoring those standing in the queue!). Even assuming that it is through connivance between Agents and counter clerks, how are you going to prove it at this belated stage.
This being the situation and reality, what are you going to benefit by getting the information through RTI (though you have every right to obtain the information throughRTI and the Railways are obliged to provide the information to you)! The trains and seats limited as they are, and the Dipavali rush being too heavy,
This is sheer wastage of your time. What you get through RTI is just information. Even after getting the information, it is very difficult for you to take any action. Have you got any proof that you were in the que and you could not get the ticket? So what if some one else through internet or through counter got the ticket.