Executive Summary:
This document addresses train accidents in the Southern Railway zone and the implementation of the Kavach train protection system. It highlights the reduction in train accidents due to enhanced safety measures and outlines the progress of Kavach implementation across Indian Railways, including sections passing through Tamil Nadu. The document also specifies various safety measures and technological improvements undertaken by the Railways.
Key Points / Main Content:
Train Accident Statistics:
* Consequential train accidents have decreased from 135 in 2014-15 to 31 in 2024-25, and further to 3 up to June 2025.
* Accidents Per Million Train Kilometer (APMTKM) reduced from 0.11 in 2014-15 to 0.03 in 2024-25.
* During the last three years, 3 consequential train accidents occurred in Southern Railway, with 9 injuries on 11.10.2024 at Kavaraippettai station.
Safety Measures and Expenditure:
* Increased expenditure on safety-related activities from ₹39,463 Cr in 2013-14 to ₹1,16,470 Cr in 2024-25.
* Provision of Electrical/Electronic Interlocking Systems at 6,635 stations.
* Interlocking of Level Crossing Gates provided at 11,096 locations.
* Complete Track Circuiting provided at 6,640 stations.
* Implementation of modern track structure and mechanization of track laying.
* Use of Ultrasonic Flaw Detection (USFD) for rail testing.
* Elimination of all unmanned level crossings (UMLCs) on Broad Gauge (BG) routes by January 2019.
* Replacement of conventional ICF coaches with LHB design coaches.
Kavach Implementation:
* Kavach is adopted as a National ATP system in July 2020.
* Kavach deployed on 1548 RKm on South Central Railway and North Central Railway.
* Kavach commissioned over Kota-Mathura section (324 Route Kilometers) on 30.07.2025.
* Kavach Version 4.0 approved by RDSO on 16.07.2024 with improvements including increased location accuracy and better interface with existing systems.
* Key items progress up to 15.08.2025: 5,870 Km of Optical Fibre Cable laid, 638 Telecom Towers installed, Kavach provided at 708 Stations and in 1,348 Locos, and Track side equipment installed for 4,012 Rkm.
* Bids invited for track side works of Kavach for approximately 15,000 RKm, with works awarded for 14,954 RKm.
* More than 30,000 technicians, operators and engineers have been trained on Kavach technology.
Impact Analysis:
Indian Railways Staff (Loco Pilots, Technicians, Engineers):
* Impact: Enhanced safety due to Kavach and other technological upgrades; need to adapt to new technologies and safety protocols.
* Action Required: Undergo specialized training programs on Kavach and adhere to updated safety guidelines.
Railway Passengers:
* Impact: Increased safety and reduced risk of accidents due to improved infrastructure and safety measures like Kavach.
* Action Required: Be aware of fire safety guidelines and not carry any inflammable material.
Southern Railway Zone:
* Impact: Benefit from the phased implementation of Kavach and other safety enhancements, leading to safer train operations.
* Action Required: Coordinate with relevant authorities for Kavach implementation and ensure adherence to safety protocols.
Manufacturers/Suppliers of Railway Equipment:
* Impact: Opportunities to supply equipment for Kavach implementation and other safety-related projects.
* Action Required: Meet the safety certification standards for Kavach and other railway equipment.
Key Entities Referenced
Southern Railway: One of the 18 zones of Indian Railways, mentioned in the context of train accidents.
Tamil Nadu: A state in India, specifically mentioned concerning train accidents and Kavach implementation.
Kavach: An Automatic Train Protection (ATP) system developed in India, designed to enhance railway safety by preventing train collisions. Also referred to as a National ATP system.
Indian Railways: The national railway system of India, responsible for the operation and maintenance of the country's rail network.
South Central Railway: One of the zones of Indian Railways where Kavach has been deployed.
North Central Railway: One of the zones of Indian Railways where Kavach has been deployed.
Kota-Mathura Section: A section on the Delhi-Mumbai route where Kavach Version 4.0 has been commissioned.
LHB design coaches: Modern passenger coaches being implemented to replace older ICF design coaches, enhancing safety.
GOVERNMENT OF INDIA
MINISTRY OF RAILWAYS
LOK SABHA
STARRED QUESTION NO. 393
TO BE ANSWERED ON 20.08.2025
TRAIN ACCIDENTS IN SOUTHERN RAILWAY ZONE
*393. DR. KALANIDHI VEERASWAMY:
Will the Minister of RAILWAYS be pleased to state:
(a) whether there has been increase in the number of train accidents
in the Southern Railway zone particularly in Tamil Nadu during the last
three years;
(b) if so, the details thereof including the number of casualties and
affected routes along with the main reasons identified for these
accidents;
(c) whether the Government has taken cognizance of the delay in
the implementation of the Kavach train protection system in Tamil
Nadu and nearby railway zones, if so, the details thereof along with
the reasons for the said delay; and
(d) the timeline by which Kavach is expected to be fully
implemented in the said zone?
ANSWER
MINISTER OF RAILWAYS, INFORMATION & BROADCASTING AND
ELECTRONICS & INFORMATION TECHNOLOGY
(SHRI ASHWINI VAISHNAW)
(a) to (d): A Statement is laid on the Table of the House.
*****STATEMENT REFERRED TO IN REPLY TO PARTS (a) TO (d) OF LOK
SABHA STARRED QUESTION NO. 393 TO BE ANSWERED ON
20.08.2025.
(a) to (d): Safety is accorded the highest priority on Indian Railways. As
a consequence of various safety measures taken over the years, there
has been a steep decline in the number of accidents. Consequential
Train Accidents have reduced from 135 in 2014-15 to 31 in 2024-25 as
shown in the graph below. The causes of the accidents that took place
over Indian Railways broadly include track defects, loco/coach
defects, equipment failures, human errors, etc.
It may be noted that the Consequential Train Accidents during
the period 2004-14 was 1711 (average 171 per annum), which has
declined to 31 in 2024-25 and further to 3 in 2025-26 (upto June, 2025).
Another important index showing improved safety in train
operations is Accidents Per Million Train Kilometer (APMTKM) which
has reduced from 0.11 in 2014-15 to 0.03 in 2024-25, indicating an
improvement of approx. 73% during the said period.
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2005- 2009- 2014- 2019- 2020- 2021- 2022- 2023- 2024- 2025-26
06 10 15 20 21 22 23 24 25 (up to
Covid yearCovid year Jun'25)Consequential Train Accidents on Indian Railways and casualties
(including railway passengers and railway personnel) therein are as
follows:-
Period No. of Consequential No. of No. of
Train Accidents Deaths Injuries
2004-05 to 2013-14 1,711 904 3,155
2014-15 to 2023-24 678 748 2,087
During the last three years, 3 consequential train accidents have
taken place over Southern Railway. No fatality took place in these 3
accidents. However, 9 persons sustained injuries on 11.10.2024, in the
case of collision, which happened at Kavaraippettai station over
Chennai Division of Southern Railway.
The various safety measures taken to enhance safety in train
operations are as under:-
1. On Indian Railways, the expenditure on Safety related activities
has increased over the years as under:-
Expenditure on Safety related activities (Rs. in Cr.)
2013-14 2022-23 2023-24 RE 2024- BE 2025-
(Act.) (Act.) (Act.) 25 26
Maintenance of 9,172 18,115 20,322 21,800 23,316
Permanent Way &
Works
Maintenance of 14,796 27,086 30,864 31,540 30,666
Motive Power and
Rolling Stock
Maintenance of 5,406 9,828 10,772 12,112 12,880
Machines
Road Safety LCs 1,986 5,347 6,662 8,184 7,706
and ROBs/ RUBs
Track Renewals 4,985 16,326 17,850 22,669 22,800
Bridge Works 390 1,050 1,907 2,130 2,169Signal & Telecom 905 2,456 3,751 6,006 6,800
Works
Workshops Incl. 1,823 7,119 9,523 9,581 10,134
PUs and Misc.
expenditure on
Safety
Total 39,463 87,327 1,01,651 1,14,022 1,16,470
2. Electrical/Electronic Interlocking Systems with centralized
operation of points and signals have been provided at 6,635
stations up to 30.06.2025 to reduce accident due to human
failure.
3. Interlocking of Level Crossing (LC) Gates has been provided at
11,096 level Crossing Gates up to 30.06.2025 for enhancing
safety at LC gates.
4. Complete Track Circuiting of stations to enhance safety by
verification of track occupancy by electrical means has been
provided at 6,640 stations up to 30.06.2025.
5. Kavach is a highly technology intensive system, which requires
safety certification of highest order. Kavach was adopted as a
National ATP system in July 2020. Kavach is provided
progressively in phased manner. Kavach has already been
deployed on 1548 RKm on South Central Railway and North
Central Railway. Presently, the work is in progress on Delhi-
Mumbai and Delhi-Howrah corridors (approximately 3000 RKm).
Kavach has been successfully commissioned over Kota–Mathura
section (Delhi–Mumbai route) covering 324 Route Kilometers on
30.07.2025.6. Detailed instructions on issues related with safety of Signalling,
e.g. mandatory correspondence check, alteration work protocol,
preparation of completion drawing, etc. have been issued.
7. System of disconnection and reconnection for S&T equipment as
per protocol has been re-emphasized.
8. All locomotives are equipped with Vigilance Control Devices
(VCD) to improve alertness of Loco Pilots.
9. Retro-reflective sigma boards are provided on the mast which is
located two OHE masts prior to the signals in electrified
territories to alert the crew about the signal ahead when
visibility is low due to foggy weather.
10. A GPS based Fog Safety Device (FSD) is provided to loco pilots in
fog affected areas which enables loco pilots to know the
distance of the approaching landmarks like signals, level
crossing gates, etc.
11. Modern track structure consisting of 60kg, 90 Ultimate Tensile
Strength (UTS) rails, Prestressed Concrete Sleeper (PSC)
Normal/Wide base sleepers with elastic fastening, fan shaped
layout turnout on PSC sleepers, Steel Channel/H-beam Sleepers
on girder bridges is used while carrying out primary track
renewals.
12. Mechanisation of track laying activity through use of track
machines like PQRS, TRT, T-28 etc. to reduce human errors.
13. Maximizing supply of 130m/260m long rail panels for increasing
progress of rail renewal and avoiding welding of joints, thereby
improving safety.
14. Ultrasonic Flaw Detection (USFD) testing of rails to detect flaws
and timely removal of defective rails.15. Laying of longer rails, minimizing the use of Alumino Thermic
Welding and adoption of better welding technology for rails i.e.,
Flash Butt Welding.
16. Monitoring of track geometry by OMS (Oscillation Monitoring
System) and TRC (Track Recording Cars).
17. Patrolling of railway tracks to look out for weld/rail fractures.
18. The use of Thick Web Switches and Weldable CMS Crossing in
turnout renewal works.
19. Inspections at regular intervals are carried out to monitor and
educate staff for observance of safe practices.
20. Web based online monitoring system of track assets viz. Track
database and decision support system has been adopted to
decide rationalized maintenance requirement and optimize
inputs.
21. Detailed instructions on issues related with safety of Track, e.g.
integrated block, corridor block, worksite safety, monsoon
precautions, etc. have been issued.
22. Preventive maintenance of railway assets (Coaches & Wagons) is
undertaken to ensure safe train operations.
23. Replacement of conventional ICF design coaches with LHB
design coaches is being done.
24. All unmanned level crossings (UMLCs) on Broad Gauge (BG) route
have been eliminated by January 2019.
25. Safety of Railway Bridges is ensured through regular inspection
of Bridges. The requirement of repair/rehabilitation of Bridges is
taken up based upon the conditions assessed during these
inspections.26. Indian Railways has displayed Statutory “Fire Notices” for
widespread passenger information in all coaches. Fire posters
are provided in every coach so as to educate and alert
passengers regarding various Do’s and Don’ts to prevent fire.
These include messages regarding not carrying any inflammable
material, explosives, prohibition of smoking inside the coaches,
penalties etc.
27. Production Units are providing Fire detection and suppression
system in newly manufactured Power Cars and Pantry Cars, Fire
and Smoke detection system in newly manufactured coaches.
Progressive fitment of the same in existing coaches is also
underway by Zonal Railways in a phased manner.
28. Regular counselling and training of staff is undertaken.
29. Concept of Rolling Block introduced in Indian Railways (Open
Lines) General Rules vide Gazette notification dated 30.11.2023,
wherein work of integrated maintenance/ repair/replacement of
assets is planned up to 52 weeks in advance on rolling basis and
executed as per plan.
The details of the Safety related works related to better
maintenance practices, Technological improvements, better
infrastructure and rolling stock etc. undertaken by Railways are
tabulated below:-
2014-15 to
2004-05 to 2014-25 Vs.
S.N. Item 2024-25
2013-14 2004-14
(till March 25)
Technological Improvements
1. Use of high-quality rails 57,450 Km 1.43 Lakh Km More than 2
(60 Kg) (Km) times
2. Longer Rail Panels 9,917 Km 77,522 Km Nearly 8 times
(260m) (Km)3. Electronic Interlocking 837 3,691 Stations More than 4
(Stations) Stations times
4. Fog Pass Safety As on As on 288 times
Devices (Nos.) 31.03.14: 31.03.25:
90 Nos. 25,939 Nos.
5. Thick Web Switches Nil 28,301 Nos.
(Nos.)
Better Maintenance Practices
1. Primary Rail Renewal 32,260 Km 49,941 Km 1.5 times
(Track Km)
2. USFD (Ultra Sonic Flaw 79.43 Lakh 2 Crore More than 2
detection) Testing of times
Welds (Nos.)
3. Weld failures (Nos.) In 2013-14: In 2024-25: 90 %
3699 Nos. 370 Nos. reduction
4. Rail fractures (Nos.) In 2013-14: In 2024-25: More than
2548 Nos. 289 Nos. 88% reduction
Better Infrastructure and Rolling Stock
1. New Track KM added 14,985 Km 34,428 Km More than 2
(Track Km) times
2. Flyovers (RoBs)/ 4,148 Nos. 13,808 Nos. More than 3
times
Underpasses (RUBs)
(Nos.)
3. Unmanned Level As on As on Removed
crossings 31.03.14: 31.03.24: Nil
(Nos.) on BG 8,948 (All eliminated
by 31.01.19)
4. Manufacture of LHB 2,337 Nos. 42,677 More than 18
Coaches (Nos.) times
Kavach Implementation
1. Kavach is an indigenously designed, developed, and manufactured
Automatic Train Protection (ATP) system. Kavach is a highly
technology intensive system, which requires safety certification of
highest order (SIL-4).2. Kavach aids the Loco Pilot in running of trains within specified
speed limits by automatic application of brakes in case Loco Pilot
fails to do so and also helps the trains to run safely during
inclement weather.
3. The first field trials on the passenger trains were started in
February 2016. Based on the experience gained and Independent
Safety Assessment of the system by Independent Safety Assessor
(ISA), three firms were approved in 2018-19 for supply of Kavach
Ver 3.2.
4. Kavach was adopted as National ATP system in July 2020.
5. Implementation of Kavach System involves following key
activities:-
a. Installation of Station Kavach at each and every station, block
section.
b. Installation of RFID Tags throughout the track length.
c. Installation of telecom towers throughout the section.
d. Laying of Optical Fibre Cable along the track.
e. Provision of Loco Kavach on each and every Locomotive running
on Indian Railways.
6. Based on deployment of Kavach version 3.2 on 1465 RKm on South
Central Railway, a lot of experience was gained. Using that further
improvements were made. Finally, Kavach specification version 4.0
was approved by RDSO on 16.07.2024.
7. Kavach version 4.0 covers all the major features required for the
diverse railway network. This is a significant milestone in safety for
Indian Railways. Within a short period, Indian Railways has
developed, tested and started deploying Automatic Train Protection
System.8. Major improvement in Version 4.0 includes increased Location
Accuracy, Improved Information of Signal Aspects in bigger yards,
Station to Station Kavach interface on OFC and Direct Interface to
existing Electronic Interlocking System. With these improvements,
Kavach Ver. 4.0. is planned for large scale deployment over Indian
Railways.
9. After extensive and elaborate trials in 324 Rkms of Mathura-Kota
section for advance version of Kavach 4.0, this section is approved
by Independent Safety Assessor (ISA). This is also the first section
to be approved by ISA. Kavach Version 4.0 has been commissioned
over Kota–Mathura section covering 324 Route Kilometers on
30.07.2025.
10. Progress of Key items comprising Kavach system on Indian
Railways upto 15.08.2025 is as under:-
S. No. Items Progress
i. Laying of Optical Fibre Cable 5,870 Km
ii. Installation of Telecom Towers 638 Nos.
iii. Provision of Kavach at Stations 708 Nos.
iv. Provision of Kavach in Loco 1,348 Locos
v. Installation of Track side equipment 4,012 Rkm
11. Project for equipping 10,000 Locomotives has been finalized. 69
number of loco sheds have been prepared for equipping with
Kavach.
12. Bids for track side works of Kavach for approximately 15,000 RKm
have been invited covering all GQ, GD, HDN and identified sections
of Indian Railways, out of which works of 14,954 RKm have been
awarded.13. Part of sections mentioned above passes through the state of Tamil
Nadu.
14. Specialized training programmes on Kavach are being conducted at
centralized training institutes of Indian Railways to impart training
to all concerned officials. By now, more than 30,000 technicians,
operators and engineers have been trained on Kavach technology.
Courses have been designed in collaboration with IRISET.
*****