Thiruvananthapuram Mail

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Thiruvananthapuram Mail
Service type Inter-city rail
Locale Tamil Nadu and Kerala
Current operator(s) Southern Railway zone
Start Chennai Central
Stops 21 for 12624 and 20 for 12623
End Thiruvananthapuram Central
Distance travelled 926 km (575 mi)
Service frequency Daily
Train number(s) 12623 / 12624
On-board services
Class(es) First AC, AC 2 Tier AC ,3 Tier AC,Sleeper Class,General
Seating arrangements Yes
Sleeping arrangements LHB Coaches
Auto-rack arrangements No
Catering facilities Yes
Observation facilities Large windows
Entertainment facilities No
Track gauge 1,676 mm (5 ft 6 in)
Electrification 25 kV AC 50 Hz
Operating speed Average 86 kilometres per hour (53 mph), Maximum 110 kilometres per hour (68 mph)
Route map
(Chennai - Trivandrum) Mail Express route map

Thiruvananthapuram mail is a daily superfast express running between Thiruvananthapuram and Chennai under Southern Railway zone of the Indian railways. This train runs via Kottayam. This train connects Chennai with 6 big cities in South India (Thiruvananthapuram, Kottayam, Kochi, Thrissur, Coimbatore and Salem).


The train was introduced as No.19/20 Madras - Cochin Harbour Terminus Express and was later renamed as Madras - Cochin Harbour Terminus Mail. Diesel loco was given to this train in 1961. The train was later extended to Thiruvananthapuram Central when the rail link connecting to Thiruvananthapuram Central via Kottayam was completed.


As per the numbering system of the Indian Railways, the train has been currently assigned the number 12623 for the down direction (Chennai central -Thiruvananthapuram central) and 12624 for the up direction (Thiruvananthapuram Central - Chennai central). In the downward direction, the train departs at 19.45 hours and reaches Thiruvananthapuram at 11.45 hours next day. In the upward direction, the train departs at 14.50 hours and reaches Chennai at 07.30 hours.

Coach composition[edit]

Loco 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
BSicon LDER.svg EOG GS S11 S10 S9 S8 S7 S6 S5 S4 S3 S2 S1 B4 B3 B2 B1 A1 HA GS GS EOG

Total number of coaches 22

The train consists of:

  • Loco WAP7 from Royapuram
  • 1 AC First/Second AC Coach (HA1)
  • 1 AC Two-tier coaches(A1)
  • 4 AC Three-tier coaches (B1, B2, B3, B4)
  • 11 Sleeper Coaches (S1 - S11)
  • 3 Unreserved General Sitting Coaches (GS)
  • 2 end on generators


It is hauled by WAP 7 of Royapuram shed

In popular culture[edit]

No.20 Madras Mail, which is a Malayalam movie released in 1990 has most of the scenes shot inside the moving Thiruvananthapuram Mail train.