12163/64 got lhb only to integrate rakes with 20103/04. That's the reason it still did not get its 1AC. Also 22157/58 and 22159/60 are just 18 coach trains which would be reduced to 16 on lhbfication. So, maybe that's the reason for not giving lhb coaches to these and CR would be waiting to complete yard remodelling of CSMT.