Ddu-bsb need a new bridge and 2 extra lines for smooth operation
Still bsb -ddu can be done in 20-25 mins due to curves and psr..
But will save 50% time from existing
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However...
more...
Work for bsb to kashi 2 additional line is already in progress ( means 2 current mainline + additional 2 mainlines)
I guess by next year or so tender will be out for new bridge parallel to existing malviya bridge
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However
Bsb to lko is 110 and has smooth operation but lko to mb is 100 mps section and listening from past 4-5 years that work going on for increasing speed but still didn't see any progress, had seen track renewal, removal of PSRs, increase of PSRs, slippers change but mps is same
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Dont know when lko and mb dvsn will think beyond freight
Lko dvsn must be transferred to NER