Nahi sir i vividly remember it was in April 2013. It was from MDS to UJN in UDZ INDB Exp. Travel distance was just 200 km but 6+ hrs. I went to MDS to attend my friend's wedding and I had booked the ticket as soon as the wedding date was fixed (around 1-2 months ago). I tried searching the PNR in booked history of IRCTC but since it is too old, couldnt find the same. Will search my email id for PNR. But it wont probably show the upgraded class as it will be the booking email.