🛣️Under ConstructionEast India

Amas–Darbhanga Expressway (NH-119D)

Amas (Aurangabad, Bihar) to Darbhanga (Bihar) — 230 km · 4 lanes

A 230 km greenfield expressway running north-south through the middle of Bihar, connecting Amas (near Aurangabad) to Darbhanga. Part of Bharatmala Pariyojana, it will serve as a crucial north-south corridor in Bihar.

230

Kilometres

Lanes

120 km/h

Speed Limit

State

Amas-Darbhanga Expressway Route Map

Amas (Aurangabad), Gaya outskirts, Patna outskirts, Samastipur, Darbhanga

Amas-Darbhanga Expressway Start and End Point

Start Point (Origin)

Amas (Aurangabad, Bihar)

End Point (Terminus)

Darbhanga (Bihar)

States & Union Territories

Bihar

Major Cities & Towns

●Aurangabad→●Gaya→●Patna→●Samastipur→●Darbhanga

View on Google Maps

Key Features

●Greenfield expressway under Bharatmala Pariyojana
●North-south corridor through middle of Bihar
●Connects south Bihar to north Bihar
●Will enhance connectivity to flood-prone Mithila region

Project Details

NameAmas–Darbhanga Expressway (NH-119D)

Total Length230 km

Lanes4 lanes

Speed Limit120 km/h

StatusUnder Construction

Operator / DeveloperNational Highways Authority of India (NHAI)

Expected Completion2027

Project CostRs 12,000 Crore

RegionEast India

Safety Tips for Driving on the Amas-Darbhanga Expressway

⚠️Strictly follow the speed limit of 120 km/h. Overspeeding on expressways attracts heavy fines.
⚠️Always wear seatbelts. Rear-seat passengers must also buckle up on expressways.
⚠️Do not stop on the main carriageway. Use designated rest areas and parking zones.
⚠️Maintain lane discipline — use the right lane only for overtaking.
⚠️Keep a safe following distance of at least 3 seconds at expressway speeds.
⚠️Use headlights even during daytime as per expressway rules.
⚠️In case of breakdown, move to the shoulder immediately and use hazard lights.
⚠️In an emergency, call 112 (Unified Emergency) or 1033 (Highway Helpline).

Frequently Asked Questions

What is the total length of the Amas-Darbhanga Expressway?

The Amas-Darbhanga Expressway has a total length of 230 km. It connects Amas (Aurangabad, Bihar) to Darbhanga (Bihar).

What is the current status of the Amas-Darbhanga Expressway?

The Amas-Darbhanga Expressway is currently under construction and is expected to be completed by 2027.

Which states does the Amas-Darbhanga Expressway pass through?

The Amas-Darbhanga Expressway passes through Bihar.

What is the speed limit on the Amas-Darbhanga Expressway?

The speed limit on the Amas-Darbhanga Expressway is 120 km/h.

How many lanes does the Amas-Darbhanga Expressway have?

The Amas-Darbhanga Expressway has 4 lanes.

What is the cost of the Amas-Darbhanga Expressway project?

The Amas-Darbhanga Expressway project has an estimated cost of Rs 12,000 crore.

What are the major cities connected by the Amas-Darbhanga Expressway?

The major cities and towns along the Amas-Darbhanga Expressway include Aurangabad, Gaya, Patna, Samastipur, Darbhanga.

Who is the operator of the Amas-Darbhanga Expressway?

The Amas-Darbhanga Expressway is operated/developed by National Highways Authority of India (NHAI).

What are the key features of the Amas-Darbhanga Expressway?

Key features of the Amas-Darbhanga Expressway include: Greenfield expressway under Bharatmala Pariyojana; North-south corridor through middle of Bihar; Connects south Bihar to north Bihar; Will enhance connectivity to flood-prone Mithila region.

Planning a Trip on the Amas-Darbhanga Expressway?

Check out our road safety guides and expressway speed limits.

Road Safety Rules Expressway Speed Limits National Highways