Until the late 1980s, Indian Railways ticket reservations were made manually.
In late 1987, IR began using a computerized ticketing system.
The system went online in 1995 to provide current information on status and availability.
The ticketing network at stations is computerized with the exception of remote areas.
 IR now provides multiple channels for passengers to book tickets between any two train stations in the country.

Reserved tickets may be booked up to 120 days in advance on the Indian Railway Catering and Tourism Corporation website, smartphone apps, SMS, rail reservation counters at train stations, or through private ticket booking counters.
A Tatkal train ticket can be booked by passengers who want to travel at short notice with a reserved seat or berth, but such tickets are sold at higher fares than regular advance reservation tickets.

Confirmed reservation tickets will show the passenger and fare details along with berth or seat number(s) allocated to them on the ticket.
If the reservation is not available on a particular train, the ticket has a wait-list number.
A person with a wait-listed ticket must wait for enough cancellations to obtain a confirmed ticket.
If their ticket is not confirmed on the day of departure, they cannot board the train.
Reservation against cancellation tickets, between the waiting and confirmed lists, allow a ticket holder to board the train and obtain a seat chosen by a ticket collector after the collector has found a vacant seat.

Unreserved tickets for short distance or unplanned travels may be purchased at stations at any time before departure.
Holders of such tickets may only board the general compartments.
Suburban networks issue unreserved tickets valid for a limited time or season passes with unlimited travel between two stops for a period of time.
Commuters can purchase tickets and season passes at stations or through UTS mobile apps.
A valid proof for the purchase of ticket along with photo identification is required to board the train.

India has some of the lowest train fares in the world, and passenger traffic is subsidised by higher-class fares.
Discounted tickets are available for senior citizens (over age 60), the differently-abled, students, athletes, and those taking competitive examinations.
One compartment of the lowest class of accommodation is earmarked for women on every passenger train.
Some berths or seats are also reserved for women or senior citizens.
Until the late 1980s, Indian Railways ticket reservations were made manually. In late 1987, IR began using a computerized ticketing system. The system went online in 1995 to provide current information on status and availability. The ticketing network at stations is computerized with the exception of remote areas.  IR now provides multiple channels for passengers to book tickets between any two train stations in the country.
Reserved tickets may be booked up to 120 days in advance on the Indian Railway Catering and Tourism Corporation website, smartphone apps, SMS, rail reservation counters at train stations, or through private ticket booking counters. A Tatkal train ticket can be booked by passengers who want to travel at short notice with a reserved seat or berth, but such tickets are sold at higher fares than regular advance reservation tickets.
Confirmed reservation tickets will show the passenger and fare details along with berth or seat number(s) allocated to them on the ticket. If the reservation is not available on a particular train, the ticket has a wait-list number. A person with a wait-listed ticket must wait for enough cancellations to obtain a confirmed ticket. If their ticket is not confirmed on the day of departure, they cannot board the train. Reservation against cancellation tickets, between the waiting and confirmed lists, allow a ticket holder to board the train and obtain a seat chosen by a ticket collector after the collector has found a vacant seat.
Unreserved tickets for short distance or unplanned travels may be purchased at stations at any time before departure. Holders of such tickets may only board the general compartments. Suburban networks issue unreserved tickets valid for a limited time or season passes with unlimited travel between two stops for a period of time. Commuters can purchase tickets and season passes at stations or through UTS mobile apps. A valid proof for the purchase of ticket along with photo identification is required to board the train.
India has some of the lowest train fares in the world, and passenger traffic is subsidised by higher-class fares. Discounted tickets are available for senior citizens (over age 60), the differently-abled, students, athletes, and those taking competitive examinations. One compartment of the lowest class of accommodation is earmarked for women on every passenger train. Some berths or seats are also reserved for women or senior citizens.
Indian Railways