The overtake of JShtb happens as of now while kerala enters ers and has a reversal;
since it is a long distance train, the reversal time will be given as an end slack or before tcr ,either to through jshtb at the front or to accomodate the direct overtake.
In the to new delhi direction, there may be a change of say, 10-15 mins yet that is also not so much possible as slack might be added at ed or somewhere else since its a long distance train.
afterall,...
more... its tvc division and at any day, the return kerala to tvc has varying levels of punctuality.