Complex sentence: So if the train starts e.g. on 3rd, and reaches the desired boarding station on 4th, the Tatkal bookinas a PAN Card, Passport, Driver's Licence, etc. during the actual journey.
Split into simpler sentences: So if the train starts e.g. on 3rd, and reaches the desired boarding station on 4th. Tatkal bookings require any PAN Card, Passport, Driver's Licence, etc. during the actual journey.