Because it is preplanned so nobody is bothered about it for more than 1 year now. Just to harass passengers and force passengers who can afford to leave train and travel by flight because of this daily late of all trains in Howrah yo mumbai/pune/gujrat route. And many pasengers including me is force to travel by flight to meet job/treatment /other requirements on time.
Nobody neither RM, RB, SECR, nor godi media nobody says anything why daily late, when it will resolve, what steps RB is taking to resolve it. Nothing.