i have seen most of the train coming to New Delhi from various state or city are getting priority.And most of the trains are super fast.like
.Andhra Pradesh exp.
.Poorva exp
.Kalka mail
.Shiv Ganga...
more... Exp
.Prayagraj exp
.Sharmshakthi exp
.shramjivi exp
.vaishali exp
.Magadh Exp
.Tamiladu exp
.Kerala exp
.GT exp.
Etc.