Thanks for observing.
.
The last 20 trains looked up by a member, are shown in descending order of time. The same is also present in the Search page & the Availability Calendar.
.
So,...
more... for example, if you searched for trains from "NDLS to BCT" and after that "NDLS to HWH", and after that "MAS to BPL", the current search "MAS to BPL" will be at the top of the list, and then "NDLS to HWH", then "NDLS to BCT", ... The list will keep dynamically updating, and you don't have to manage it.
.
This feature may be handy, especially for mobile users, since they can quickly switch between recent searches, trains & availability calendar lookups, instead of going back to the Search Page and retyping.