My personal experience
Many times I have noticed that trains from Delhi ( New Delhi , Anand vihar terminal , Old Delhi , Nizamuddin ) originating from any station of Delhi or having RLWL qouta charting station at Delhi
We can easily get tickets availablity in Current booking Availability
New Delhi , Anand vihar terminal , old Delhi till Kanpur Central,...
more... prayagraj , Mughalsarai ( deen Dayal Upadhyay jn) very easily
From Nizamuddin till Agra cantt , jhansi even upto Bhopal jn
Till kota jn on kota route
While
In returning situation
Kanpur Central to Delhi sometimes we can find berth Available In current Available
Prayagraj to Delhi chances are less
Mughalsarai to Delhi in Rajdhani trains chances are there but In mail express less chances
Bhopal to Delhi sometimes berth are available
Jhansi to Delhi mostly tickets are available in current charting
Agra se mostly tickets available rehta h
But in comparasion to
Delhi to
for Delhi
chances are less