SER resudle two reasons of trains it is my thought
1.it's rakes using to convert jagganth express if geetanjali express is very late arrival on howrah
2.possibility its some coaches not full rakes using to some south bond trains like eastcoast,falakuma express...but not sure.
but it is clear that it's rakes aur some coaches using to another train.if those trains late arrival in howrah...
more... it is resudle...but which train not clear...only for imagine it.