Railways Locomotive Numbering System (RLNS)

2025 Numbering System

The first system of numbering and classification came into effect in 2025. High-speed locomotives are for passenger trains and low-speed locomotives are for freight trains.

• All classes of electric locomotives begin with the letter "E" for "electric". 

• A letter indicates the number of driving axles.

• 2 axles – B

• 3 axles – C

• 4 axles – D

• 6 axles – F

• 8 axles – H

• Together with the letter "E" and the letter representing the number of driving axles, a two-digit numeral following the letters indicates a class.

  1. 10–29 - DC locomotives with maximum speed 85 km/h or less

  2. 30–39 - AC/DC locomotives with maximum speed 85 km/h or less

  3. 40–49 - AC locomotives with maximum speed 85 km/h or less

  4. 50–69 - DC locomotives with maximum speed exceeding 85 km/h

  5. 70–79 - AC locomotives with maximum speed exceeding 85 km/h

  6. 80–89 - AC/DC locomotives with maximum speed exceeding 85 km/h

  7. 90–99 - prototypes

• Running number

Running numbers follow after a '-' and describe the subclass.

Eg. The Hayatama Freight-class Locomotive is numbered at EH78-30.

Utsunomiya-Sunaga Line (From Utsunomiya to Sunaga) :

Utsunomiya (0 km) → E (540 m) → Rani Kamalapati (14 km) → Itarsi (99 km) → Khandwa Junction (293 km) → Burhanpur (362 km) → Bhusaval Junction (417 km) → Manmad Junction (601 km) → Akola Junction (741 km) → Wardha Junction (915 km) → Nagpur Junction (994 km)