Jurisdiction of RCT n Consumer forum

goodevening to all the seniors/Advocates.

Jurisdiction associated with consumer forum and Railway Claims Tribuna.

One person  booked a Railway coaches to travel some destinations and as per the instruction of the Railways he  deposited security amount with the Railways and there after he booked the circular tickets and further Reservation of about 300 passengers and accordingly made  full   payments of all those circulars n reservations.After completion of the journey he approached the authorities concerned n clamed the security deposits laying with the Railways.Now the Railway authorities refusing to return the security amount by stating that the amount of the circular tickets n reservation is much more then the amount paid at the time of bookings.What my personnel view is I want to approach the Consumer forum on the ground of illegal Trade practise and Railway authorities trying to dispute the issue by making it a fare  disputes of the circular tickets so that this issue will not  be maintainable in the consumer forums.Kindly suggest me a best possible remedies/case laws.etc.

K Sinu vasu