Old Train Numbers
This is based on a list of mail/express trains as on 01.10.1989 on IR, with their old and new 4-digit numbers.
Note: For an explanation of the new 4-digit 'universal' train numbers, please see the Train Numbers section of the Indian Railways FAQ on this site. The 3-digit numbers seen in some cases are for trains that run entirely within one zone.
Also...
more... see the altered trains page for some more details on the evolution of various train services.