Few things that are noticeable and should be added to the history/timeline of the trains are:
1) 14205/06 FD-DLI was not daily until 2005, instead bi-weekly.
2) 14235/36 Varanasi- Bareilly (then 135/36) was a passenger. I remember it was made express in 2006 or 2007.
3) 14369/70 Triveni Express was not daily, instead three days in a week.
4)...
more... 18103/04 Jallianwallabagh Express timetable was different from what is now.
5) 12355 Archana Express was weekly (not bi-weekly) and not a superfast with a different number (3289).
6) 12231/32 was not a superfast train.
7) 54251 SRE passenger (then 351) used to depart LKO at 23:50 instead of 20:00.
8) 14265 schedule was 8 o'clock at LKO now it is 16:35 PM.
9) 12231/32 Himgiri (then 3073/74) was also not a superfast train.
10) 12235/36 Rajdhani Express was not in existence.
11) 12327/28 Upasana Expres (2327/28) was weekly. No Kumbh Express (started perhaps in 2008). In DN direction, Upsana used to share timetable with Akal Takht Express.