Delhi earlier had only 3 major terminals(not terminus, but stations from trains originate/terminate)
New Delhi, Hazrat Nizammuddin, Delhi. But for the last couple of years two more terminals are coming up.
ANVT -Anand Vihar Terminus is known to everyone
DEE-Delhi Sarai Rohilla is fast becoming a terminal too.
The...
more... following trains terminate/originate from DEE(See the variety, 2 Durontos, 1 Sampark Kranti, 1AC Superfast, 1 Garib Rath, 7 other trains)
DEE-JAT Duronto
DEE-YPR Duronto
DEE-JSM/BKN Rajasthan Sampark Kranti
DEE-BKN Superfast
DEE-SGNR AC Superfast
DEE-Porbandar Express
DEE-JP Superfast Special
DEE-RE Special
DEE-BDTS Garib Rath
DEE-Udaipur City Chetak Express
DEE-Kalka Himalayan Queen
DEE-UHP Special
Next terminal in making in delhi would be Delhi Safdurjang
Mumbai has CSTM/BDTS/BCT/LTT/DR .. So in fact Delhi will fastly outnumber the terminals in Mumbai