This time difference is made to avoid double overtaking with SDAH-AII SF Exp,
It first overtakes SDAH-AII SF before Bardhhaman and later get overtaken by SDAH-AII SF next day near Etawah...
now after new timings, no overtaking between these two will be there..
Bardhhaman se Kanpur Central tak dono ke timings ko exchange kar diya gaya h..., Now HWH-JU SF will trail SDAH-AII SF...
more... all the way till Jaipur....