A nice, heartfelt write-up!!
AP and her 3 sister trains will always be the legends for South India. Just look at Karnataka express. It's been 35 years since Karnataka and Kerala express were separated into 2 trains. But even now, all the staff en-route and localites in Bangalore still call it KK express ( many of them were not even around when it ran as KK !). AP will also remain like that. No matter what the future holds for this train, it will always be the one and only AP express for RFs and passengers alike!