Major Mumbai stations include Chhatrapati Shivaji Maharaj Terminus (CSMT), Mumbai Central (MMCT), Bandra Terminus (BDTS), and Lokmanya Tilak Terminus (LTT). Key Delhi stations are New Delhi (NDLS), Hazrat Nizamuddin (NZM), Delhi Sarai Rohilla (DEE), and Old Delhi (DLI). Faster services like Rajdhani and Duronto Express typically take around 15-17 hours. Advance booking is highly recommended, especially for popular trains and higher classes.