@Balaji Sunder: Re# 213248-8
Please check the attached file and concentrate on the words I am pasting below
It is clarified that provision of Para-637 of IRCM Volume-1 is very
clear wherein it has been indicated that the change of station once made
will...
more... be final i.e. In case a passenger has changed the boarding point,
he/she will loose all right to board the train from the original boarding
point. If found travelling without any proper authority to travel, he/she
will have to pay fare with penalty between original boarding point to
changed boarding point.
Here it says the passenger will loose all right to board the "TRAIN"
Here focus on word "TRAIN" it clearly says passenger will not be able to board the Train from booking point.