there are many from these zones.
NR also has.
Uttar Sampark Kranti and others too.
Gorakhdham
NER has.
Sant...
more... kabir dham
etc
NCR
Ald Jaipur and others too.
ECR.
Vaishali,
BSK
Sapt Kranti
etc'
Its only that these trains are discussed more so people tend to think that these are the best but in reality you may find better trains than these in these zones too