The master list is a saved list of up to 20 passengers in an IRCTC account, each with name, age, gender, berth preference and ID details. During booking they are added to the form from a dropdown instead of being typed, which saves the minute that decides a Tatkal booking.
Passengers on the master list can be Aadhaar-verified individually, and a booking made only with verified passengers on a verified account counts towards the higher monthly booking limit.
Also written or searched as: IRCTC master list · saved passengers · add passenger list