first what the route u want to choose check the trains in that route. if u want tom make a Express follow a express if SF follow SF. just like that. and i saw u r following wrong methods in making TT in some areas. Ex:- even u r from PUNE your KOP-NDLS express is a very slow TT in all sections some time more speed some time slow than passengers. u have to check first the trains in that route and make your plan accordingly and ask advise from others.