🛣️Secondary Highway

National Highway 427 (NH 427)

Howli to Amingaon — 92.0 km

NH 427 is a secondary/branch national highway connecting Howli to Amingaon, spanning 92.0 km through Assam. It branches from NH 27.

92.0

Kilometres

State

Major Cities

NH 27

Parent Highway

NH 427 Route Map

NH27 near Howli, Barpeta, Hajo, NH27 near Amingaon

States & Union Territories

NH 427 passes through the following 1 state:

Assam

Major Cities & Towns Along NH 427

The highway passes through 4 major cities and towns:

●Howli→●Barpeta→●Hajo→●Amingaon

View on Google Maps

NH 427 Start and End Point

Start Point (Origin)

Howli

Junction point from route description

End Point (Terminus)

Amingaon

Junction point from route description

Highway Classification

Highway NumberNH 427

TypeSecondary/Branch Highway

Parent HighwayNH 27

Total Length92.0 km

Numbering SystemPost-2010 (New)

Managed ByNHAI / MoRTH

Speed Limit on NH 427

Cars, Jeeps & Light Motor Vehicles100 km/h

Buses & Goods Carriers (medium)80 km/h

Heavy Motor Vehicles (trucks, lorries)60 km/h

Motorcycles & Two-Wheelers80 km/h

Speed limits are prescribed under the Motor Vehicles Act and Central Motor Vehicles Rules for national highways. State governments may impose lower limits on specific stretches.

Safety Tips for Driving on NH 427

⚠️Always follow the speed limit — 100 km/h for cars and 80 km/h for heavy vehicles on national highways.
⚠️Wear seatbelts and ensure all passengers are buckled up.
⚠️Do not overtake on curves, bridges, or narrow sections.
⚠️Keep a safe following distance, especially during monsoon season.
⚠️Use headlights even during daytime on highways.
⚠️Take breaks every 2 hours during long drives to avoid fatigue.
⚠️In case of an emergency, call 112 (Unified Emergency Number) or 1033 (National Highway Helpline).

Frequently Asked Questions

Which states does National Highway 427 pass through?

National Highway 427 passes through Assam.

What are the major cities on National Highway 427?

The major cities and towns along National Highway 427 include Howli, Barpeta, Hajo, Amingaon.

What is the total length of National Highway 427?

The total length of National Highway 427 is 92.0 km.

Is National Highway 427 a primary or secondary national highway?

National Highway 427 is a secondary/branch national highway that branches from NH 27.

What is the speed limit on National Highway 427?

The speed limit on National Highway 427 is 100 km/h for cars and light motor vehicles, 80 km/h for buses and medium goods vehicles, and 60 km/h for heavy motor vehicles (trucks and lorries). These limits are set under the Central Motor Vehicles Rules for national highways. State governments may impose lower limits on specific sections.

What is the route of National Highway 427? (Route Map)

National Highway 427 follows this route: NH27 near Howli, Barpeta, Hajo, NH27 near Amingaon.

Planning a Road Trip on NH 427?

Check out our road safety guides and highway speed limits.

Road Safety Rules Highway Speed Limits Road Trip Checklist