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GOVERNMENT OF INDIA
MINISTRY OF RAILWAYS
LOK SABHA
UNSTARRED QUESTION NO. 4059
TO BE ANSWERED ON 12.08.2026
ROLLOUT OF KAVACH 4.0 ON SOUTH WESTERN RAILWAY ZONE
4059. SHRI P C MOHAN:
Will the Minister of RAILWAYS be pleased to state:
(a) the details of the progress made in deployment of Kavach 4.0 on the
South Western Railway zone including the route kilometres
commissioned so far out of the 3,692 km identified for the zone and the
locomotives fitted, zone-wise;
(b) the details of Phase-I (1,585 km) and Phase-II (2,200 km) works on South
Western Railway including funds sanctioned and utilised for each phase,
phase-wise;
(c) the details of specific sections and high-density corridors within
Karnataka identified for Kavach implementation during 2026-27, Section
and year-wise; and
(d) the details of the timeline prescribed for completion of network-wide
Kavach deployment on the South Western Railway, the measures
taken/being taken by the Government to accelerate installation and
commissioning of Kavach in Karnataka?
ANSWER
MINISTER OF RAILWAYS, INFORMATION & BROADCASTING AND
ELECTRONICS & INFORMATION TECHNOLOGY
(SHRI ASHWINI VAISHNAW)
(a) to (d):
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).
§ Page 1 of 42. 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
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, 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
Page 2 of 4Electronic 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–Vadodara-
Virar section
ii Vadodara – Ahmedabad section 96
(2) Delhi – Howrah route: 1,210 Rkm
i. Chipyana - Tundla - Kanpur - Subedarganj 563
section
ii. Kanpur – Lucknow section 71
iii. Mirzapur - DDU (Excluding) section 64
iv. DDU(FOC)-Bhabua Road section 50
v. Sasaram - Phesar section 43
vi. Gaya -Sarmatarn- Nimiaghat section 159
vii. Chota Ambana - Bardhaman – Howrah 260
section
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 1568 Rkm passing through various sections of South
Western Railway. Out of this, Hubballi - Arsikare, Ramnagar - Mysuru,
Page 3 of 4Hosur - Dharamapuri and Tumkuru - Arsikare sections are passing
through the state of Karnataka. In addition, Kavach work has been
sanctioned for the remaining 2147 Rkm of South Western Railway.
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 7,726 RKm
equipment
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 programmes 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 engineers 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
including South Western Railway. Requisite funds are made available as
per the progress of works.
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