"Enough" ?
Premium Rajdhani, Fully AC Train, Fully AC Garib Rath- Yes Mumbai has plenty.
How many of them are Normal Superfast Trains with Mixed composition ?? 2 Trains- Delhi Sarai Rohilla Bandra Express and Maharashtra Sampark Kranti Express. How many of them are running Daily ? NONE. People travel in Sleeper and General Coaches too you know.
In earlier days, it was easy...
more... enough. People didn't book that many tickets from stations beyond New Delhi, so getting seats from New Delhi to Mumbai was an easier thing Punjab Mail, Paschim Express and Golden Temple Mail; now it definitely isn't.
I don't care whether Mumbai gets it or Pune gets it, even if Mumbai gets it Pune won't be at a total loss.
Mumbai definitely doesn't have "enough" Normal Superfast Trains.