The problem is with Coaching depot TPTY and nothing to do with Falaknuma Express.. Please raise a complaint to SCR complaint portal to remove the RSA, it will be the best thing for 12703/12704 as it has to use the dirty rake of 12733/34 maintained at TPTY. It seems TPTY is usinng all leftover coaches for this rake.
Prior to RSA, ask anyone how good was 12703 /12704 but only after this RSA the cleanliness is ruined. Hopefull 12703/4 gets a brand new rake from SC divn in future..