Southern Railway — Deficiency of Services

I Suresh (PNR[protected] was to board BTTR MAS EXP (17237) at Nellore Railway Station today[protected] at 05-40 hours along with my Mother aged 75 years (PNR[protected] and my Uncle aged 70 years. Our coach number printed on the ticket was D-1. On arrival of the train at the Platform number: 4 we noticed that the coach next to the engine was marked as D-8 and we have started walking towards D1 assuming that the coaches are placed in the descending order. (Coach position display was switched off at Platform 4 at the time of arrival of the train) We rushed along side the platform in an attempt to searching for Coach D1, and walked all the way to the last coach next to Guard. Surprisingly there was no coach D-1 in the train and we all got panicked, as the train was about to depart from the station.. immediately we took the decision to board the train in coach 8. As the train moves, we were walking inside the running train to search for TTI, finally we met Mr M.Nageswara Rao on duty as TTI a coach D-2. and enquired him where about Coach D-1 in the train..he simply admitted the fact that the Coach next to the engine was wrongly marked as D-8 but that was actually D-1.
Dear Sir, I would like to bring to your kind notice that because of the carelessness of the concerned Railway staff we have to face the Physical strain and metal stress. Please imagine the situation - taking my mother aged 75 years and my uncle aged 70 years on the plat form, running from Engine to Guard coach with in the given Halt time and again inside the train walking all the way from Guard coach to Engine in our search for Coach 1.
Because of the carelessness of the Railway staff we have to face the painfull experience today. I would request your good selves to take appropriate action against the staff concerned who is responsible for this grave lapse. Also I request you to avoid such lapses in future.
Thanking you,

PS:
After I insisted Mr.Nageswara Rao - to stick a paper marking D- 1 on the coach, he responded to our request at Gudur Railway Station.