what is ADTF
when we search Availability between any two station some time we get this message

What is ISL station deleted

when...
more...

we search Availbility between any two station some time we get this message

What is ISL station deleted?
That means when you are trying to see the route of train for which you are viewing in the Railway site.
The train will not stop/halt now in that station.
That means u unable co relate your staion code is ISL as per railways and the STN deleted means the particular train will not stop in the station whose...
more...

code is ISL. (STN - means station in railway codification in the web site.
The trains might have stopped in that station earlier but now the stn is deleted means it will not stop.
What is ADTF?
Arrival Departure Time Frame
It is different Agency Data Tape Facility or Analysis & Design Platform Task Force from server when the date of the data is missing on the way to server from prs. it will apear only when a valid date is not coming out of data server . it happen some time only this is actully technecally word.
Regards.