agartala - silchar passenger is an indian passenger train belonging to northeast frontier railway zone of indian railways that runs between the capital city of tripura & second largest city of assam, that is, agartala & silchar. it is currently being operated with 55663/55664 train numbers on daily basis. the train makes its main halt at karimganj junction for 25 minutes & loco/rake reversals also takes place here. the train runs with sguj/wdp-4 & sguj/wdp-4d.