Eastern Railways — 12023 is always late

Address:

400601

The train no 12023 howrah - patna jana shatabdi express runs late very often. (1) it is because the patna - howrah arrives late. It departs late from patna and arrives late. (2) mismanagement by railway authority.
I find the train goes packed but the reservations are not done in a fear o[censored]ncertainty. Please see that this train runs in time, people are not inconvenienced, railways get revenue.
Management must be perfect.