The departure timings of 12346 Saraighat Express should be changed to evening just like 12345 and rake sharing should be done at howrah in with any overnight train which arrives howrah early in the morning and does not get much late. 12346 continuously gets delayed due if 12345 arrives late at guwahati. Changing the timings of the DN Saraighat would give ample time at guwahati and even cleaning can be done at guwahati which is not presently being done because of less time available at guwahati. The train can leave at 4.30 in the evening and arrive howrah at 9.30 in the morning. This would also allow people from many far regions of north east to arrive guwahati by early morning bus or train and catch Saraighat.