Railways Clears Kavach 4.0, Barbil Doubling and New AP Train
Indian Railways approved Kavach 4.0 on 614.75 route km of Varanasi Division for 223 crore, the 6 km Barbil doubling for 122 crore and a new tri-weekly train.

Why in News
On 28 September 2026 Indian Railways announced three approvals: Kavach 4.0 for the Varanasi Division, the Barbil-Bolanikhadan doubling of South Eastern Railway, and a new tri-weekly train between Machilipatnam and Kurnool City in Andhra Pradesh.
Indian Railways cleared three separate proposals on the same day: an anti-collision system for a division in Uttar Pradesh, a short but heavily loaded doubling in the mineral belt of Odisha, and a new passenger service in Andhra Pradesh.
Kavach 4.0 for Varanasi Division
Version 4.0 of Kavach has been sanctioned for 614.75 route kilometres of the Varanasi (BSB) Division of North Eastern Railway, at a cost of 223 crore rupees. The work covers the balance sections of the division that the system had not yet reached. Kavach is an Automatic Train Protection system designed in the country; it guards against a train passing a signal at danger, puts the brakes on by itself where the situation demands it, and keeps watch on how a train is being driven.
Doubling on the Barbil-Bolanikhadan line
The second approval is for doubling a stretch of just 6 km between Barbil and Bolanikhadan on South Eastern Railway, at a completion cost of 122 crore rupees. Short as it is, the section sits on the Energy, Mineral and Cement Corridor and is single line today, carrying roughly 9 MTPA in about 6 loaded rakes a day. The traffic is high-grade iron ore and pellets moving out of SAIL's Bolani mines and private sidings, Rungta and Khatau Narbheram, towards steel plants and ports. Doubling is expected to carry an additional 8.9 MTPA once commissioned and to cut delays to freight trains, and it has been taken up ahead of the mine and port expansions that will otherwise choke the corridor.
A new train for Andhra Pradesh
The third clearance is a tri-weekly service between Machilipatnam and Kurnool City via Vijayawada on South Coast Railway, covering 499 km. The Machilipatnam-Kurnool City Express will leave at 16:55 and reach the next morning at 05:45, running on Monday, Wednesday and Saturday; the return service leaves Kurnool City at 09:30 and arrives at 21:35 the same day, on Tuesday, Thursday and Sunday. Stops include Gudivada, Vijayawada, Narasaraopet, Vinukonda, Donakonda, Markapur Road, Cumbum, Giddalur, Diguvametta, Nandyal, Betamcherla and Dhone, linking the coastal districts with the interior of the state.
Important Facts
| Kavach version approved | Kavach 4.0 |
|---|---|
| Kavach coverage | 614.75 route kilometres, Varanasi (BSB) Division |
| Kavach zone and cost | North Eastern Railway, 223 crore rupees |
| What Kavach is | Indigenous Automatic Train Protection (ATP) system |
| Doubling project | Barbil-Bolanikhadan, 6 km, South Eastern Railway |
| Doubling cost | 122 crore rupees |
| Corridor | Energy, Mineral and Cement Corridor |
| Extra freight capacity | 8.9 MTPA after commissioning |
| New train | Machilipatnam-Kurnool City Express, tri-weekly, via Vijayawada |
| New train zone and distance | South Coast Railway, 499 km |
Exam Point of View
Remember Kavach 4.0 on 614.75 route km of Varanasi Division (North Eastern Railway) for 223 crore rupees and what Kavach does; the 6 km Barbil-Bolanikhadan doubling of South Eastern Railway for 122 crore rupees on the Energy, Mineral and Cement Corridor with an extra 8.9 MTPA; and the 499 km tri-weekly Machilipatnam-Kurnool City Express via Vijayawada on South Coast Railway.
Practice Questions
Kavach Version 4.0 has been approved on 614.75 route kilometres of the Varanasi Division of which railway zone?
- A.Northern Railway
- B.North Eastern Railway
- C.North Central Railway
- D.East Central Railway
Show answer
The Varanasi division, abbreviated BSB, belongs to this zone, and the sanction of 223 crore rupees extends Kavach 4.0 across the balance sections of that division, a total of 614.75 route kilometres.
Read the full explanation →The Barbil-Bolanikhadan doubling project approved by Indian Railways lies on which corridor?
- A.Energy, Mineral and Cement Corridor
- B.Golden Quadrilateral Corridor
- C.Dedicated Freight Corridor East
- D.Rail Sagar Corridor
Show answer
The stretch is only 6 km long but it carries high-grade iron ore and pellets from the Bolani mines of SAIL and from private sidings towards steel plants and ports, and the doubling has been cleared at a completion cost of 122 crore rupees.
Read the full explanation →The new tri-weekly train approved between Machilipatnam and Kurnool City will cover what distance?
- A.399 km
- B.449 km
- C.499 km
- D.549 km
Show answer
The new service runs between Machilipatnam and Kurnool City by way of Vijayawada on South Coast Railway, and that is the distance the train covers between the two ends.
Read the full explanation →Frequently Asked Questions
On how many route kilometres has Kavach 4.0 been approved in Varanasi Division?
On 614.75 route kilometres of the Varanasi (BSB) Division of North Eastern Railway, at a cost of 223 crore rupees. Kavach is an indigenous Automatic Train Protection system.
What is the Barbil-Bolanikhadan doubling project?
It is a 6 km doubling on South Eastern Railway approved at a completion cost of 122 crore rupees. The section lies on the Energy, Mineral and Cement Corridor and will carry an additional 8.9 MTPA of freight after commissioning.
Which new train has been approved in Andhra Pradesh?
A tri-weekly train between Machilipatnam and Kurnool City via Vijayawada on South Coast Railway, covering 499 km, with stops at Gudivada, Narasaraopet, Vinukonda, Nandyal, Dhone and other stations.
Sources
- Indian Railways Approves ₹223 Crore for Kavach 4.0 on 614.75 Route Kilometres of Varanasi Division (opens in a new tab) — Press Information Bureau
- Indian Railways Approves ₹122 Crore for 6 km Barbil–Bolanikhadan Doubling Project of South Eastern Railway (opens in a new tab) — Press Information Bureau
- Indian Railways Approves New Tri-Weekly Train Between Machilipatnam and Kurnool City via Vijayawada of South Coast Railway (opens in a new tab) — Press Information Bureau
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