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GOVERNMENT OF INDIA
MINISTRY OF RAILWAYS
LOK SABHA
UNSTARRED QUESTION NO. 4021
TO BE ANSWERED ON 12.08.2026
INSTALLATION OF KAVACH ON HIGH-DENSITY AND HIGH-PASSENGER
TRAFFIC ROUTES
4021. DR. HEMANT VISHNU SAVARA:
SHRI JASWANTSINH SUMANBHAI BHABHOR:
SHRI ANUP SANJAY DHOTRE:
DR. SANJAY JAISWAL:
Will the Minister of RAILWAYS be pleased to state:
(a) the details of the progress made in the deployment of Kavach 4.0
including the route kilometres covered and number of locomotives
equipped with Kavach 4.0 as on date, zone-wise;
(b) whether the railway zones and high-density corridors have been identified
for implementation of the Kavach during 2026–27 including the sections
of Maharashtra particularly Akola district and zones of Mumbai and
Palghar areas, Delhi-Mumbai routes passing through the Dahod Lok
Sabha Constituency and if so, the details thereof;
(c) whether any routes falling within the State of Bihar have been
covered/identified for the implantation under Kavach 4.0 and if so, the
details thereof, route-wise;
(d) whether the Government prescribed any timeline for the phased, network-
wide deployment of Kavach across Railways and if so, the details
thereof;
(e) the steps taken/being taken by the Government to expedite the
installation and commissioning of the Kavach system across the
Railways network;
(f) the details of the strategy made by the Government to augment
manufacturing capacity, signalling infrastructure and availability of
trained manpower for this purpose; and
§ Page 1 of 5(g) whether the Government propose to prioritise the rollout of Kavach on
high-density and high-passenger traffic routes for enhancing rail safety
and if so, the details thereof?
ANSWER
MINISTER OF RAILWAYS, INFORMATION & BROADCASTING AND
ELECTRONICS & INFORMATION TECHNOLOGY
(SHRI ASHWINI VAISHNAW)
(a) to (g):
1. Kavach is an indigenously developed 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 1,465 RKm on South
Central Railway and experience gained, further improvements were
Page 2 of 5made. 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, IR 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, Kavach Version 4.0 has been
successfully commissioned on 2,633 Route Kilometres as on 31.07.26,
covering the high density Delhi- Mumbai and Delhi-Howrah routes as
below:
SN Section Progress
(Route Km)
(1) Delhi-Mumbai route: 1,423 Rkm
i Tilak Bridge - Junction cabin – Palwal – 1,327
Mathura –Kota-Nagda-Ratlam–Dahod-
Vadodara-Palghar-Virar section
(Passes through Maharashtra including Palghar
& Dahod areas on the Delhi - Mumbai route)
ii Vadodara – Ahmedabad section 96
(2) Delhi – Howrah route: 1,210 Rkm
i. Chipyana - Tundla - Kanpur - Subedarganj 563
section
Page 3 of 5ii. Kanpur – Lucknow section 71
iii. Mirzapur - DDU (Excluding) section 64
iv. DDU(FOC)-Bhabua Road section 50
(Passes through Bihar also)
v. Sasaram - Phesar section 43
(Passes through Bihar)
vi. Gaya -Sarmatarn- Nimiaghat section 159
(Passes through Bihar also)
vii. Chota Ambana - Bardhaman – Howrah section 260
10. In addition, track side Kavach implementation work has been taken up
on 21,794 RKM covering all GQ, GD, HDN and identified sections of Indian
Railways including states of Maharashtra (including parts of Akola) and
Bihar.
11. The total Progress of key items of Kavach on Indian Railway sections
are as under:-
SN Item Progress
i Laying of Optical Fibre Cable 11,547 Km
ii Installation of Telecom Towers 1,721 Nos.
iii Station Data Centre 1,009 station
iv Installation of Track side equipment 7,726 RKm
v Provision of Kavach in Loco 6,290 Nos.
12. In addition, work for installation of Kavach in 7,190 Locomotives and
1,200 EMU/MEMU has been taken up.
13. Specialized training programs on Kavach are being conducted at
centralized training institutes of Indian Railways to impart training to all
concerned officials. By now more than 94,000 technicians, operators and
Page 4 of 5engineers have been trained on Kavach technology. This includes about
57,000 Loco Pilots & Assistant Loco Pilots. Courses have been designed
in collaboration with IRISET.
14. The funds utilized on Kavach works so far up to Jun'26 is Rs. 3,875
Crores. The allocation of funds during the year 2026-27 is Rs. 2,066
Crores. Kavach work is going at good pace in the entire country.
Requisite funds are made available as per the progress of works.
15. Kavach is an indigenously developed Automatic Train Protection
system. The main component of Kavach are Stationary Kavach, Remote
Interface Units and Loco Kavach which comply with Make In India
policy.
Since entire Kavach system is conceived, designed, and manufactured
in India, all the vendors are Indian manufacturer. Three manufacturers
are already approved and further two more are under process of
approval. These vendors have to comply with stringent safety standards
of SIL4 for components and products, and accordingly utilize the supply
chain.
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