Talk to a RailFan - you will learn a LOT about Trains.

How many platforms they got:

Howrah Jn: 23
Sealdah: 21
CST Mumbai: 18
Chennai Central: 17
New Delhi: 16
Old Delhi: 16
Ahmedabad: 12
Kharagpur: 12
Chennai Egmore: 11
Kanpur Central: 10
Prayagraj Jn: 10
Patna Jn: 10
Vijayawada: 10
Bangalore City: 10
Gorakhpur Jn:10
Lucknow Charbagh: 9

Drop a comment if you think any of this is off.

Howrah Jn: 23
Sealdah: 21
CST Mumbai: 18
Chennai Central: 17
New Delhi: 16
Old Delhi: 16
Ahmedabad: 12
Kharagpur: 12
Chennai Egmore: 11
Kanpur Central: 10
Prayagraj Jn: 10
Patna Jn: 10
Vijayawada: 10
Bangalore City: 10
Gorakhpur Jn:10
Lucknow Charbagh: 9

Agar koi galat info hai toh comment karo.