Quite impressive that Brahmaputra Mail is getting 6 LHB rakes, back to back.
Remember they'd converted Kerala Express to LHB in phases; that created confusion as LHB & ICF rakes with different CC was operating on nominated days. Think it took almost a month for all 6 rakes to get upgraded to LHB!
Now, even proposed conversion of Nethravati Express to LHB is going to happen in phases only; 1st rake will get upgraded ex. TVC on 25/5 & 4th rake on 2/8!