hey if the lowest time that to be achived by any train to reach New Jalpaiguri,should run from Howrah Station via Dankuni,Bardhaman,Rampurhat.This is the most fastest route towards NJP.As trains from Howrah takes arround 20min to reach Dankuni,after this station every train get accelarated to high speed.But from Kolkata or Sealdah Station It takes arround 40-45min to reach Dankuni for a superfast train.So 9hr 45min scheduled given is not practically true.this time can only be achived by Superfast Train From train,in practical since it never been achived so far now.lowest time achived by Darjeeling Mail about 10hr 15min.