Indian Railways — allotment of accommodation o[censored]pper berth to senior citizen

Sir
i have booked an e-ticket of pnr no. [protected] through irctc portal for five passengers including two senior citizens aged 74 & 60 years from puri to howrah by train no. 18410, srijagnnath express on 27th june 2018 at 08:01.48 hrs. i.e. on opening day for journey on 25/10/2018.

although i choose lower berths preference option but surprisingly the system allotted me three upper berths including for two senior citizens and two middle berths.

now i am very much afraid how my 74 years old mother in law who has acute knee problem and me 60 years old will avail the upper/middle berth .

will you please make arrangement for re-allotment of at least two lower berth for us and oblige.
Regards
nikhilesh de
pnr. no. [protected]