For a RailFan, watching MPS skips are far more interesting than watching F1 race - Prince Maan

I am a senior citizen based in chennai and I booked my ticket from Bangalore city junction to chennai by 6221 cauvery express leaving Bangalore at 23-45 hrs on 4-8-10 vide pnr no.4419967920, in coach No.S 12/0065/LB.
I reached Bangalore city junction around 22-45 hrs and the train from Mysore arrived 15 minutes late past midnight today morning.
was horrified to find only upto coach No.S11. Some one directed me to go to the other end for coach No.S12. Not being able to find my coach, I...
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again approached some railway official, who said that coaches from No.S12 to S14 or so would be attached shortly, and he directed me to again go to the other end and wait for my coach.
With my luggage, I had to again rush to the other end and you can imagine my agony at this old age to rush to the other end, especially so, when the time available is very short and you can never even imagine, whether you can make to the coach, at the zero hour.
Could not the railway authorities make a prior announcement, well before the arrival of the train or even put up a prominent notice at a visible spot that coaches from S12 to S14 or so will be attached after the arrival of the train and passengers booked on these coaches need not be anxious about not finding their coaches on arrival of the traina.
Kindly do something so that this agnonising experience does not recur to any one in future.