I have received the RTI response from NWR on the lhb conversion of 12479/80; as per the reply letter the zone has no documents available for conversion of this train. God Knows when this will be converted to LHB and what's the reason behind for not upgrading it. The RCF is timely rolling out the coaches to NWR and it was under 2nd priority for the current year. Its a totally surprise now. Should I file appeal for the same at higher level, will it provide any help. Pls suggest