Duronto and Rajdhani are elite class trains, and this kind of trains should not have RAC quota, because one pay's the full fare but still share the side berth,it should either be confirmed or not confirmed and not in between, by having RAC in final listing passenger is a the mercy of the TTE, you have to run after him or else he will sell the vacant seat if any is available.
I have suffered similar situation in my last journey to Pune and back to delhi. I went to pune by Sampark kranti(12630) and believe me i have to run after TTE to confirm my RAC in one Coach and that too after paying for his chai-pani.
On...
more... my return journey by 12263 Duronto Exp to by bad luck i was having RAC seat, and i have to share the side berth with another RAC passenger, we decided to sit the entire night,as i cannot sleep with stinking feet of the other person on my face. i propose that the RAC system at least in this kind of train should be abolished. getting an RAC seat is a punishment which you have to bear the entire journey and the day after as a hangover of it.