I travelled in Guwathi express from Bangalore to Chennai on 17-02-2010. Absolutely there is no difference between the reserved passengers and ticketless travellers. The railway ticket checker doesnt seem to act about it.
The ticketless travelers continue to disturb fellow passengers by roaming inside the train frequently, sitting in a place where a reserved person is sleeing, unruly comments on fellow passengers, talking the whole night louder and so on..

I could not even give a complaint against that person because there is no evidance that he is travelling in that coach.

This could lead to untoward incidents and they could not track the person responsible for it. It could be theft or nuisance to fellow passengers or anything that could lead to disaster.

If this continues, the indian railways will loose the confidence of public and citizens would prefer a different mode of transport.